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Novel Photosensitive Fluorinated Poly(arylene ether) Having Zero Birefringence
Author(s) -
Li XiangDan,
Zhong ZhenXin,
Kim Jang J.,
Lee MyongHoon
Publication year - 2004
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200400039
Subject(s) - arylene , birefringence , materials science , ether , polarizability , irradiation , chalcone , moiety , polymer chemistry , polymer , photochemistry , optics , composite material , chemistry , organic chemistry , alkyl , molecule , physics , aryl , nuclear physics
Abstract Summary: A novel photosensitive fluorinated poly(arylene ether) containing chalcone units was synthesized from decafluorinated chalcone and fluorinated bisphenol at low temperature. Upon UV irradiation, the refractive indices of the polymer film were decreased because of the reduction of electronic polarizability in the chalocone moiety. The decrease was more significant in the in‐plane direction than in the out‐of‐plane direction, and consequently, zero birefringence (at 632.8 nm) was obtained after 90 s of exposure.The changes in the refractive indices and the birefringence of chalcone‐containing fluorinated poly(arylene ether) films synthesized and measured at 632.8 nm with respect to UV irradiation time.