GLORIA — GEOMAR Library Ocean Research Information Access

1

Online Resource

Thermomechanical properties and rheological behavior of biodegradable composites

Georgiopoulos, Panayiotis ; Kontou, Evagelia ; Niaounakis, Michael

Wiley ; 2014

In: Polymer Composites Vol. 35, No. 6 ( 2014-06), p. 1140-1149

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In: Polymer Composites, Wiley, Vol. 35, No. 6 ( 2014-06), p. 1140-1149

Type of Medium: Online Resource

ISSN: 0272-8397

URL: Issue

URL: Article

DOI: 10.1002/pc.v35.6

DOI: 10.1002/pc.22761

Language: English

Publisher: Wiley

Publication Date: 2014

detail.hit.zdb_id: 1475935-4

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2

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Recycling of biopolymers – The patent perspective

Niaounakis, Michael

Elsevier BV ; 2019

In: European Polymer Journal Vol. 114 ( 2019-05), p. 464-475

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In: European Polymer Journal, Elsevier BV, Vol. 114 ( 2019-05), p. 464-475

Type of Medium: Online Resource

ISSN: 0014-3057

URL: Article

DOI: 10.1016/j.eurpolymj.2019.02.027

Language: English

Publisher: Elsevier BV

Publication Date: 2019

detail.hit.zdb_id: 1483529-0

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3

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Gamma-sterilization effects and influence of the molecular weight distribution on the postirradiation resistance of polypropylene for medical devices

Martakis, Nick ; Niaounakis, Michael ; Pissimissis, Dimitris

Wiley ; 1994

In: Journal of Applied Polymer Science Vol. 51, No. 2 ( 1994-1-10), p. 313-328

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In: Journal of Applied Polymer Science, Wiley, Vol. 51, No. 2 ( 1994-1-10), p. 313-328

Type of Medium: Online Resource

ISSN: 0021-8995 , 1097-4628

URL: Article

DOI: 10.1002/app.1994.070510214

Language: Unknown

Publisher: Wiley

Publication Date: 1994

detail.hit.zdb_id: 1491105-X

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4

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Effects of aging on the thermomechanical properties of poly(lactic acid)

Niaounakis, Michael ; Kontou, Evangelia ; Xanthis, Menelaos

Wiley ; 2011

In: Journal of Applied Polymer Science Vol. 119, No. 1 ( 2011-01-05), p. 472-481

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In: Journal of Applied Polymer Science, Wiley, Vol. 119, No. 1 ( 2011-01-05), p. 472-481

Type of Medium: Online Resource

ISSN: 0021-8995

URL: Issue

URL: Article

DOI: 10.1002/app.v119:1

DOI: 10.1002/app.32644

Language: English

Publisher: Wiley

Publication Date: 2011

detail.hit.zdb_id: 1491105-X

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5

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Comparative study of PLA nanocomposites reinforced with clay and silica nanofillers and their mixtures

Kontou, Evagelia ; Niaounakis, Michael ; Georgiopoulos, Panayiotis

Wiley ; 2011

In: Journal of Applied Polymer Science Vol. 122, No. 3 ( 2011-11-05), p. 1519-1529

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In: Journal of Applied Polymer Science, Wiley, Vol. 122, No. 3 ( 2011-11-05), p. 1519-1529

Type of Medium: Online Resource

ISSN: 0021-8995

URL: Article

DOI: 10.1002/app.34234

Language: English

Publisher: Wiley

Publication Date: 2011

detail.hit.zdb_id: 1491105-X

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6

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Comparison of two distinct phenolic antioxidants in γ-sterilized NR compounds used as rubber pistons in syringes for single use

Martakis, Nick ; Niaounakis, Michael

Wiley ; 1992

In: Journal of Applied Polymer Science Vol. 46, No. 10 ( 1992-12-5), p. 1737-1748

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In: Journal of Applied Polymer Science, Wiley, Vol. 46, No. 10 ( 1992-12-5), p. 1737-1748

Type of Medium: Online Resource

ISSN: 0021-8995 , 1097-4628

URL: Article

DOI: 10.1002/app.1992.070461005

Language: Unknown

Publisher: Wiley

Publication Date: 1992

detail.hit.zdb_id: 1491105-X

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7

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The role of nanofillers on the degradation behavior of polylactic acid

Kontou, Evagelia ; Georgiopoulos, Panayiotis ; Niaounakis, Michael

Wiley ; 2012

In: Polymer Composites Vol. 33, No. 2 ( 2012-02), p. 282-294

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In: Polymer Composites, Wiley, Vol. 33, No. 2 ( 2012-02), p. 282-294

Abstract: This study examines the effect of type and content of various nanofillers on the aging behavior of polylactic acid (PLA)/nanocomposites compared with that of pristine PLA, under specific environmental conditions, namely 80% relative humidity, 40°C temperature, and exposure time up to 6 months. Two different types of nanosized fillers (silica and montmorillonite, MMT) at three different weight fractions as well their mixtures were used for this purpose. The role of the various nanofillers on the aging of pristine PLA and its nanocomposites was investigated in terms of several experimental techniques including Scanning Electron Microscopy (SEM), Differential Scanning Calorimetry (DSC), Dynamic Mechanical Analysis (DMA), and tensile testing. All studied samples, except those of PLA/MMT/Si nanocomposites, exhibited the same trend in properties during aging. In particular, no significant changes are noted after 1 month of aging. The materials after 3 months of aging experienced a dramatic lowering of the stress–strain curve, whereas at 6 months a reverse effect was observed. Comparing the effect of nanofiller types on the degradation, one could conclude that PLA/MMT nanocomposites exhibit a more homogeneous degradation effect, having a higher impact on yield stress in comparison with silica. In contrast, silica has a greater effect in Young's modulus and strain at break, compared with MMT. The peculiar behavior of the PLA/MMT/Si nanocomposites during aging is explained by the hindering action of the mixture of the two nanofillers on the molecular reordering of the PLA chains in the amorphous region. POLYM. COMPOS., 2012. © 2011 Society of Plastics Engineers

Type of Medium: Online Resource

ISSN: 0272-8397 , 1548-0569

URL: Issue

URL: Article

DOI: 10.1002/pc.v33.2

DOI: 10.1002/pc.21258

Language: English

Publisher: Wiley

Publication Date: 2012

detail.hit.zdb_id: 1475935-4

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8

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OLIVE-MILL WASTEWATER IN ANTIQUITY. ENVIRONMENTAL EFFECTS AND APPLICATIONS : OLIVE-MILL WASTEWATER IN ANTIQUITY. ENVIRONMENTAL EFFECTS AND APPLICATIONS

NIAOUNAKIS, MICHAEL

Wiley ; 2011

In: Oxford Journal of Archaeology Vol. 30, No. 4 ( 2011-11), p. 411-425

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In: Oxford Journal of Archaeology, Wiley, Vol. 30, No. 4 ( 2011-11), p. 411-425

Type of Medium: Online Resource

ISSN: 0262-5253

URL: Issue

URL: Article

DOI: 10.1111/ojoa.2011.30.issue-4

DOI: 10.1111/j.1468-0092.2011.00374.x

Language: English

Publisher: Wiley

Publication Date: 2011

detail.hit.zdb_id: 1482888-1

SSG: 6,14

SSG: 6,12

SSG: 6,11

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9

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Aging of packaging films in the marine environment

Niaounakis, Michael ; Kontou, Evagelia ; Pispas, Stergios ; [et al.]

Wiley ; 2019

In: Polymer Engineering & Science Vol. 59, No. s2 ( 2019-03)

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In: Polymer Engineering & Science, Wiley, Vol. 59, No. s2 ( 2019-03)

Abstract: The present article examines the aging behavior in the marine environment of some representative flexible plastic packaging films including supermarket plastic bags made of low‐density polyethylene (LDPE), polyethylene terephthalate (PET) films, polyamide–polyethylene (PAPE) films and films made of a material under the commercial name Mater‐Bi®. The effect of aging was studied by Fourier transform infrared spectroscopy, differential scanning calorimetry, and tension including creep‐recovery tests. The polyethylene films were not hydrolytically degraded during aging in seawater, and the polyethylene chains did not undergo any substantial chain scission. The PET films after exposure for 8 months in seawater did not suffer any substantial degradation, and the PET chains were plasticized by the absorbed water. After prolonged exposure to seawater (12 months), the PET films started to degrade. The PAPE film underwent extensive chemical and structural changes during aging in seawater as result of plasticization and hydrolysis of the polyamide (PA) component in combination with an eventual loosening of the tie layer. Mater‐Bi® film underwent a severe deterioration during aging in seawater due to the hydrolysis of the starch and polycaprolactone components. All films exhibited a marked degradation of their tensile properties after exposure to accelerating aging conditions under UV radiation. POLYM. ENG. SCI., 59:E432–E441, 2019. © 2019 Society of Plastics Engineers

Type of Medium: Online Resource

ISSN: 0032-3888 , 1548-2634

URL: Issue

URL: Article

DOI: 10.1002/pen.v59.s2

DOI: 10.1002/pen.25079

Language: English

Publisher: Wiley

Publication Date: 2019

detail.hit.zdb_id: 2006718-5

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