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  • 1
    Online Resource
    Online Resource
    Clinical features related to lymphatic metastasis in grade 3 endometroid endometrial cancer: a retrospective cross-sectional study
    Ovid Technologies (Wolters Kluwer Health) ; 2021
    In:  Chinese Medical Journal Vol. 134, No. 17 ( 2021-08-23), p. 2102-2109
    Details
    In: Chinese Medical Journal, Ovid Technologies (Wolters Kluwer Health), Vol. 134, No. 17 ( 2021-08-23), p. 2102-2109
    Abstract: Endometrial cancer (EC) has been one of the most general cancers with respect to gynecological malignancies; however, there are debates on clinical strategies concerning treatments especially for patients with grade 3 (G3) endometroid endometrial cancer (EEC). Present study aimed to evaluate the lymphatic metastasis (LM) related factors and figure out the necessity of lymphadenectomy for G3 EEC patients. Methods From January 2009 to April 2019, 3751 EC patients were admitted to Obstetrics and Gynecology Hospital of Fudan University. Clinical characteristics include age, grade, stage, and clinical pathological features. A total of 1235 EEC patients were involved in the multivariable analysis. Three hundred and eighty-one patients were involved in the survival analysis and the data attributed to sufficient follow-up information. Kaplan-Meier curve and log-rank test were utilized to analyze the survival rate. Results Among the 1235 EEC patients, 181 (14.7%) were categorized as G3 and 1054 (85.3%) were grade 1 to grade 2 (G1-2). Multivariate analysis demonstrated that lymphovascular space invasion, adnexal involvement, and cervical stroma involvement were independent risk factors of LM in G3 cohort with odds ratio 3.4, 5.8, and 8.9; 95% confidence interval 1.1–10.6, 1.5–22.4, and 2.8–28.0, respectively. LM rates increased from 3.3% (3/92) to 75% (9/12) for G3 EEC cohort as related factor numbers increased from one to three. There were no differences between G3 and G1-2 EEC in overall survival and progression free survival. Additionally, no survival advantage was observed for G3 EEC patients at early stage with different plans of adjuvant treatment. Conclusions For G3 EEC patients without other pathological positive factor, the LM rate is lower than those with other pathological positive factor. Survival analysis showed no difference between G3 cohort and G1-2 cohort. Also, different adjuvant treatments had no impact on the overall survival for G3 EEC patients.
    Type of Medium: Online Resource
    ISSN: 0366-6999 , 2542-5641
    URL: Article
    DOI: 10.1097/CM9.0000000000001749
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2021
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    detail.hit.zdb_id: 127089-8
    SSG: 6,25
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  • 2
    Online Resource
    Online Resource
    Preparation of boron nitride nanosheets using a chemical exfoliation method as a thermal conductive filler for the development of silicone thermal composites Part I: effect of single- and hybrid-filler additions on the silicone composite performance
    SAGE Publications ; 2020
    In:  Textile Research Journal Vol. 90, No. 5-6 ( 2020-03), p. 666-684
    Details
    In: Textile Research Journal, SAGE Publications, Vol. 90, No. 5-6 ( 2020-03), p. 666-684
    Abstract: This study developed a nano-size filler as a thermally conductive filler for a silicone thermal pad (STP) by exfoliating hexagonal-boron nitride ( h-BN) with the chemical exfoliation-free radical polymerization method to produce boron nitride nanosheets (BNNSs). We used N,N-dimethylacrylamide as the intercalation agent. After polymerization, it became poly( N,N-dimethylacrylamide) to exfoliate the h-BN layer. BNNSs were taken as a single-filler and hybrid-fillers with Al 2 O 3 and then compared with h-BN to investigate their effect on the silicone composite properties. As the free radical polymerization reaction time increased, the interlayer distance of BNNSs lengthened to 0.35 nm, while the thickness of h-BN sheets decreased. The X-ray diffractometer results showed how the h-BN (002) crystal plane was enhanced and displaced. The Fourier transform infrared spectra showed that the characteristic peaks of 1372 and 812 cm −1 were enhanced, and the Raman results showed that the E 2 g displacement and full width at half maximum increased, thus validating the successful preparation of BNNSs. Based on the scanning electron microscope-transmission electron microscope results, BNNSs with 24-hour reaction time offered the best results with a thickness of 5 nm. The highest thermal conductivity reached 3.66 W m −1  K −1 with the addition of 50 wt% BNNSs, and tensile strength of up to 11.30 kg/cm 2 . Hybrid-fillers showed enhancement of thermal conductivity to 5.28 W m −1  K −1 and tensile strength to 7.32 kg cm −2 . Finally, the STP showed that the volume resistance ( 〉 10 10 Ω cm), withstand voltage ( 〉 10 kV mm −1 ), and flame resistance (V-0) of the STP prepared by this study comply with the industrial application specifications.
    Type of Medium: Online Resource
    ISSN: 0040-5175 , 1746-7748
    URL: Article
    DOI: 10.1177/0040517519877467
    RVK:
    ZS 0001
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2020
    detail.hit.zdb_id: 2209596-2
    detail.hit.zdb_id: 160931-2
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  • 3
    Online Resource
    Online Resource
    Preparation of boron nitride nanosheets using a chemical exfoliation method as a thermal conductive filler for the development of silicone thermal pads: Part II: Optimization of process parameter design on the development of a silicone thermal pad
    SAGE Publications ; 2020
    In:  Textile Research Journal Vol. 90, No. 17-18 ( 2020-09), p. 1891-1905
    Details
    In: Textile Research Journal, SAGE Publications, Vol. 90, No. 17-18 ( 2020-09), p. 1891-1905
    Abstract: This study developed a silicone thermal pad with high thermal conductivity and high mechanical properties. Boron nitride nanosheets (BNNSs) with different lamella thicknesses were prepared in Part I and Al 2 O 3 was filled with silicone rubber to prepare silicone thermal pads. The silicone thermal pads were prepared using the Taguchi method and the elimination and choice translating reality method. BNNSs with different lamella thicknesses, BNNS loading level, and Al 2 O 3 loading level were set as control factors for the experiment. The effect of the three sets of control factors on the thermal conductivity, tensile property, and hardness of the silicone thermal pads was discussed so as to determine the optimum product optimization process parameters. According to the experimental results, the optimum experimental combination was BNNSs with lamella thickness (B24), a BNNS loading level of 20 wt%, and an Al 2 O 3 loading level of 60 wt%. The thermal conductivity of the silicone thermal pads prepared by thermosetting was 5.25 W/mK, the maximum tensile strength was 7.55 kg/cm 2 , and the Shore hardness was 65.2 (Shore A). Under identical conditions, the thermal conductivity and tensile strength were higher than that of commercially available silicone thermal pads by 34.48% and 20.26%, respectively. The control factor influencing the thermal conductivity and tensile strength of silicone thermal pads was the BNNS loading level, with contribution degrees of 34.66% and 50.13%, respectively. Accurate parameter settings could be obtained for silicone thermal pad processes.
    Type of Medium: Online Resource
    ISSN: 0040-5175 , 1746-7748
    URL: Article
    DOI: 10.1177/0040517519900385
    RVK:
    ZS 0001
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2020
    detail.hit.zdb_id: 2209596-2
    detail.hit.zdb_id: 160931-2
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  • 4
    Online Resource
    Online Resource
    Synthesis of acrylic hot-melt adhesive based on poly(methyl methacrylate)- b -poly(2-ethylhexyl acrylate) copolymer using atom transfer radical polymerization for a nylon fabric bonding system
    SAGE Publications ; 2019
    In:  Textile Research Journal Vol. 89, No. 23-24 ( 2019-12), p. 5177-5186
    Details
    In: Textile Research Journal, SAGE Publications, Vol. 89, No. 23-24 ( 2019-12), p. 5177-5186
    Abstract: Adhesives, such as hot-melt adhesives (HMAs), are widely used in the textile industry for bonding layers of materials and have replaced traditional sewing methods. The block copolymer is a common type of HMA that provides excellent physical features and mechanical properties compared with others. Acrylate-based monomers, methyl methacrylate (MMA), and 2-ethylhexyl acrylate (2-EHA) were used as ingredients to form a linear block copolymer using atom transfer radical polymerization. MMA provides excellent cohesive strength, while 2-EHA provides good adhesion properties. An end-brominated poly(methyl methacrylate) (PMMA-Br) macroinitiator was synthesized from a MMA monomer and initiator, with the best composition obtained by the addition of a 0.6 mol initiator. The macroinitiator had the lowest molecular weight with highest conversion (97%). The addition of a 0.3 mol macroinitiator showed the lowest molecular weight with the highest conversion of acrylic copolymer PMMA- b-poly(2-ethylhexyl acrylate) (PEHA). The glass transition temperature increased with the addition of the macroinitiator concentration, from −43.7℃ to −37.6℃. The thermal stability was reduced with the addition of macroinitiator content, from 332.37℃ to 286.81℃. The shear strength and peel strength of the PMMA- b-PEHA HMAs on nylon fabrics were enhanced from 11.24 to 16.92 kg cm −2 and from 0.29 to 0.61 kg cm −1 , respectively, and did not change significantly after being washed 50 times and then kept in low-temperature storage, with the addition of the macroinitiator concentration. The block copolymer PMMA- b-PEHA prepared in this study could be used as a HMA for nylon fabric bonding systems.
    Type of Medium: Online Resource
    ISSN: 0040-5175 , 1746-7748
    URL: Article
    DOI: 10.1177/0040517519850836
    RVK:
    ZS 0001
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2019
    detail.hit.zdb_id: 2209596-2
    detail.hit.zdb_id: 160931-2
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  • 5
    Online Resource
    Online Resource
    Synthesis of high‐solid‐content, acrylic pressure‐sensitive adhesives by solvent polymerization
    Wiley ; 2018
    In:  Journal of Applied Polymer Science Vol. 135, No. 19 ( 2018-05-15)
    Details
    In: Journal of Applied Polymer Science, Wiley, Vol. 135, No. 19 ( 2018-05-15)
    Abstract: In this study, we prepared high solid content (SC), solvent‐based, acrylic pressure‐sensitive adhesives (PSAs) with n ‐dodecyl mercaptan as a chain‐transfer agent (CTA) and studied the crosslinking reactions between the crosslinker and the acrylic PSAs. Acrylic PSAs were prepared from 2‐ethyl hexyl acrylate, acrylic acid (AA), and 2‐azobisisobutyronitrile with a solution polymerization process. The results show AA resulted in an effective molecular weight in the acrylic PSAs, as it improved the hydrophilicity with increasing peel strength of the acrylic PSAs. As for the high SC, the molecular weight and system viscosity decreased through the addition of CTA. At a constant AA amount, the addition of CTA decreased the molecular weight and increased the hydrophobicity of the acrylic PSAs; this decreased the peel strength of the acrylic PSAs on the glass. Furthermore, the addition of CTA decreased the molecular weight and improved the acrylic PSAs' surface morphologies and optical properties. The acrylic PSAs produced in this study could meet production needs. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135 , 46257.
    Type of Medium: Online Resource
    ISSN: 0021-8995 , 1097-4628
    URL: Issue
    URL: Article
    DOI: 10.1002/app.v135.19
    DOI: 10.1002/app.46257
    Language: English
    Publisher: Wiley
    Publication Date: 2018
    detail.hit.zdb_id: 240694-9
    detail.hit.zdb_id: 1491105-X
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  • 6
    Online Resource
    Online Resource
    Design of Acrylate-Terminated Polyurethane for Nylon Seamless Bonding Fabric Part I: Design of the End-Capping Thermoplastic Polyurethane Adhesive with Acrylate Copolymer
    MDPI AG ; 2022
    In:  Polymers Vol. 14, No. 19 ( 2022-09-28), p. 4079-
    Details
    In: Polymers, MDPI AG, Vol. 14, No. 19 ( 2022-09-28), p. 4079-
    Abstract: This series of studies aims to design acrylate-terminated polyurethanes for use in nylon seamless bonded fabrics. The first part used N,N-dimethylacrylamide (DMAA) and methyl methacrylate (MMA) to replace the chain extender in polyurethane synthesis as end-capping agent to synthesize thermoplastic polyurethane (TPU) adhesive. The molecular weight of the TPU is controlled to further influence the mechanical and processing properties of the polyurethane. Here, polytetramethylene ether glycol (PTMG) and 4,4-methylene diphenyl diisocyanate (MDI) were polymerized, and then a blocking agent was added thereto. The results show that the characteristic peaks of benzene ring and carbamate of TPU adhesive are at 1596 cm−1 and 1413 cm−1, respectively, while the characteristic peaks of DMAA are at 1644 cm−1 and 1642 cm−1 in the FT-IR spectrum. There is an absorption peak –N=C=O– which is not shown near 2268 cm−1, which proves that the structure of TPU contains the molecular structure of capping agent, PTMG and MDI. When the DMAA concentration in the capping agent was increased from 3.0 wt% to 10 wt%, the –C=O (H-bond) area percentage of hydrogen bonds formed at 1711 cm−1 increased from 41.7% to 57.6%, while the –NH (H bond) produced at 3330 cm−1 increased from 70% to 81%. These phenomena suggest that increasing the concentration of DMAA capping agent can effectively promote the formation of complex supramolecular network structures by hydrogen bonding in TPU. The content and concentration of the capping agent affects the molecular weight of the TPU. Chain growth is terminated when molecular weight growth can be effectively controlled and reduced. It was observed in thermal analysis that with increasing DMAA concentration in the molecular structure, the concentration of capping agent in TPU, hydrogen bonding force between hard segments, melting point (Tmh) and melting enthalpy (ΔH) all increased the capping agent. The pyrolysis temperature of TPU is increased by 10–20 °C.
    Type of Medium: Online Resource
    ISSN: 2073-4360
    URL: Article
    DOI: 10.3390/polym14194079
    Language: English
    Publisher: MDPI AG
    Publication Date: 2022
    detail.hit.zdb_id: 2527146-5
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  • 7
    Online Resource
    Online Resource
    Fabrication of a thermally conductive silicone composite by incorporating surface-modified boron nitride
    SAGE Publications ; 2019
    In:  Textile Research Journal Vol. 89, No. 13 ( 2019-07), p. 2637-2647
    Details
    In: Textile Research Journal, SAGE Publications, Vol. 89, No. 13 ( 2019-07), p. 2637-2647
    Type of Medium: Online Resource
    ISSN: 0040-5175 , 1746-7748
    URL: Article
    DOI: 10.1177/0040517518798654
    RVK:
    ZS 0001
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2019
    detail.hit.zdb_id: 2209596-2
    detail.hit.zdb_id: 160931-2
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  • 8
    Online Resource
    Online Resource
    Silicone resin synthesized by tetraethoxysilane and chlorotrimethylsilane through hydrolysis–condensation reaction
    Wiley ; 2014
    In:  Journal of Applied Polymer Science Vol. 131, No. 11 ( 2014-06-05)
    Details
    In: Journal of Applied Polymer Science, Wiley, Vol. 131, No. 11 ( 2014-06-05)
    Abstract: Silicone pressure‐sensitive adhesives compositions contain a polydimethylsiloxane and a silicone resin, which can enhance the instant bonding ability and bonding strength of the adhesive. In this study, silicone resin was designed to have a low molecular weight and a highly nonpolar chemical structure. The silicone resin was applied to silicone pressure‐sensitive adhesives. The molecular structure of silicone resin was characterized by FT‐IR, GPC, 1 H‐NMR, and 29 Si‐NMR spectroscopic techniques. Properties such as thermal stability, solubility, hydrophobic, and transparent properties were researched and compared. When the chlorotrimethylsilane increased, it appeared that the amount of silanol groups, molecular weight and thermal stability decreased, while the hydrophobic and transparent properties increased. The silicone resin was completely soluble in toluene and xylene. It was also applied to silicone pressure‐sensitive adhesives, resulting in good peel adhesion. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131 , 40317.
    Type of Medium: Online Resource
    ISSN: 0021-8995 , 1097-4628
    URL: Issue
    URL: Article
    DOI: 10.1002/app.v131.11
    DOI: 10.1002/app.40317
    Language: English
    Publisher: Wiley
    Publication Date: 2014
    detail.hit.zdb_id: 240694-9
    detail.hit.zdb_id: 1491105-X
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  • 9
    Online Resource
    Online Resource
    Low corrosion optically clear adhesives for conducting glass: I. Effects of N , N ‐diethylacrylamide and acrylic acid mixtures on optically clear adhesives
    Wiley ; 2018
    In:  Journal of Applied Polymer Science Vol. 135, No. 21 ( 2018-06-05)
    Details
    In: Journal of Applied Polymer Science, Wiley, Vol. 135, No. 21 ( 2018-06-05)
    Abstract: This study designs less corrosive optically clear adhesives (OCAs) with good rework properties, where copolymer and glycidyl methacrylate (GMA) are cured by ultraviolet to form OCAs. The copolymer are synthesized by using N , N ‐diethylacrylamide (DMA), acrylic acid (AA), and 2‐ethylhexyl acrylate. The DMA and AA could form acid–base interaction and therefore lower the corrosion on metallic substrate caused by AA. Copolymer is applied in OCAs, as different adhesive properties are presented. In terms of the adhesive property of OCAs, the peel strength, shear strength, and transmittance property are decreased when the GMA concentration is increased. The tack and haze are enhanced accordingly. After 7 days' standing at 60 °C and 90% RH, OCAs have no obvious corrosion on the conductive glass circuits, and there is no residue after peeling off. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135 , 46277.
    Type of Medium: Online Resource
    ISSN: 0021-8995 , 1097-4628
    URL: Issue
    URL: Article
    DOI: 10.1002/app.v135.21
    DOI: 10.1002/app.46277
    Language: English
    Publisher: Wiley
    Publication Date: 2018
    detail.hit.zdb_id: 240694-9
    detail.hit.zdb_id: 1491105-X
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  • 10
    Online Resource
    Online Resource
    Study on the synthesis and application of silicone resin containing phenyl group
    Springer Science and Business Media LLC ; 2015
    In:  Journal of Sol-Gel Science and Technology Vol. 76, No. 1 ( 2015-10), p. 66-73
    Details
    In: Journal of Sol-Gel Science and Technology, Springer Science and Business Media LLC, Vol. 76, No. 1 ( 2015-10), p. 66-73
    Type of Medium: Online Resource
    ISSN: 0928-0707 , 1573-4846
    URL: Article
    DOI: 10.1007/s10971-015-3752-y
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2015
    detail.hit.zdb_id: 1189588-3
    detail.hit.zdb_id: 1472726-2
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