Soluble Main-Chain Azobenzene Polymers via Thermal 1,3-Dipolar Cycloaddition: Preparation and Photoresponsive Behavior

被引：56

作者：

Xue, Xiaoqiang ^{[1
]}

Zhu, Jian ^{[1
]}

Zhang, Zhengbiao ^{[1
]}

Zhou, Nianchen ^{[1
]}

Tu, Yingfeng ^{[1
]}

Zhu, Xiulin ^{[1
]}

机构：

[1] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Key Lab Organ Synth Jiangsu Prov, Suzhou 215123, Peoples R China

来源：

MACROMOLECULES | 2010年 / 43卷 / 06期

关键词：

SURFACE-RELIEF GRATINGS; NONLINEAR-OPTICAL POLYMERS; CLICK CHEMISTRY; HYPERBRANCHED POLYTRIAZOLES; PHOTOINDUCED BIREFRINGENCE; RAFT POLYMERIZATION; BLOCK-COPOLYMERS; AZO-POLYMERS; FILMS; CHROMOPHORE;

D O I：

10.1021/ma902671m

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Two soluble polymers containing azobenzene chromophore in main chain were successfully synthesized from alpha-azide, omega-alkyne A-B type azobenzene monomers, 3'-ethynylphenyl[4-hexoxyl(2-azido-2-inethylpropion<tte)phcnyl]azobenzene (EHPA) and 3'-etllytlylphenyl[4-(4-azidobutoxy)phenyl]azobellzene (EAPA), via thermal 1,3-dipolar cycloaddition in bulk, Compared to the polymers obtained from Cu(I)-catalyzed 1,3-dipolar cycloaddition ("click" chemistry), the polymers obtained from thermal 1,3-dipolar cycloaddition showed good solubility in common solvents like CHCl3 and THF and good film-forming ability. The polymers were thermally stable LIP to 330 degrees C. The structures of the main-chain azobenzene polymers were characterized by gel permeation chromatography (GPC), H-1 NMR, UV-vis, and FT-IR spectra. The photoinduced trans-cis isomerization of the polymers in chloroform (CHCl3) solution was examined. With illumination of linearly polarized Kr+ laser beam at 413.1 runt, surface relief gratings formed oil PEHPA2 spin-coating films were investigated.

引用

页码：2704 / 2712

页数：9

共 66 条

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