In:
Advances in Polymer Technology, Wiley, Vol. 37, No. 3 ( 2018-04), p. 714-723
Abstract:
Friedel–Crafts reactions of phloroglucinol and anthracene with terephthaldehyde and the varying content of 4, 4′‐bis ((chloromethyl)‐1, 1′‐ biphenyl) ( BCMB ) yielded novel hypercross‐linked polymers ( HCP s). The polymer matrix carries rigid, conjugated, quinonoid blocks; they are tiny semiconducting graphene sheets, whose organization creates micropores. The reaction involves Friedel–Crafts alkylation and the subsequent dehydrogenation of ‐ CH 2 ‐ and – CH ‐ bridges by the catalyst, FeCl 3 . Heating the reaction product between 500 and 600°C completes dehydrogenation of residual bridges. Their FTIR spectra and DRS UV ‐Vis spectra confirm such results. As a result of heating, the absorption maximum shifted toward longer wavelength, and absorbance was raised. It absorbs light like semiconducting graphene covering the entire ultraviolet, visible, and partly near infrared region. The band gap of synthesized materials is close to 1.2 eV . All the HCP s are amorphous and showed CO 2 capture close to 6 wt% at room temperature. The obtained materials are hydrophobic and decompose above 300°C in air atmosphere. So, in addition to its application to sorption of CO 2 , they are also the right choice of materials for the fabrication of organic solar cells.
Type of Medium:
Online Resource
ISSN:
0730-6679
,
1098-2329
DOI:
10.1002/adv.2018.37.issue-3
Language:
English
Publisher:
Wiley
Publication Date:
2018
detail.hit.zdb_id:
2014633-4
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