Molecular weight effect on the photoinduced birefringence and surface relief gratings formation of a methacrylate azopolymer

被引：19

作者：

Carvalho, L. L. ^{[1
]}

Borges, T. F. C. ^{[1
]}

Cardoso, M. R. ^{[1
]}

Mendonca, C. R. ^{[1
]}

Balogh, D. T. ^{[1
]}

机构：

[1] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil

来源：

EUROPEAN POLYMER JOURNAL | 2006年 / 42卷 / 10期

关键词：

azopolymer; molecular weight; optical storage;

D O I：

10.1016/j.eurpolymj.2006.04.015

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理]; 080501 [材料物理与化学]; 081704 [应用化学];

摘要：

Samples of a methacrylic side-chain azopolymer were synthesized by a radical copolymerization of methyl-methacrylate with the methacrylic derivative of the commercial dye Disperse Red-13 (DR13). Copolymers with different molecular weight were obtained by varying the reaction time and the concentration of initiator. Samples with molecular weight averages (M-w) from 3 to 8 x 10(4) g/mol and 1.4-1.7 polydispersity were obtained. The glass transition temperature of the samples increased linearly from the lower to the highest molecular weight. Optical quality cast films were prepared for all samples and photoinduced birefringence was successfully carried out in all samples as well as surface relief gratings could be inscribed in the cast films. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：2589 / 2595

页数：7

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