Novel photo-cross-linkable polymer bearing spindle-type chromophores for second-order non-linear optical materials

被引：13

作者：

Zhang, Xiaolong ^{[1
]}

Li, Ming ^{[1
]}

Shi, Zuosen ^{[1
]}

Jin, Rulong ^{[2
]}

Wang, Xibin ^{[2
]}

Yan, Yunfei ^{[2
]}

Yi, Maobin ^{[2
]}

Zhang, Daming ^{[2
]}

Cui, Zhanchen ^{[1
]}

机构：

[1] Jilin Univ, Coll Chem, State Key Lab Supramol Struct & Mat, Changchun 130012, Peoples R China

[2] Jilin Univ, State Key Lab Integrated Opto Elect, Changchun 130012, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE | 2011年 / 46卷 / 13期

基金：

中国国家自然科学基金;

关键词：

ENHANCED THERMAL-STABILITY; 2ND-HARMONIC GENERATION; ELECTROOPTIC MATERIALS; MAIN-CHAIN; DIPOLE ALIGNMENT; HIGHLY EFFICIENT; THIN-FILM; POLYURETHANE; DESIGN; HYPERPOLARIZABILITY;

D O I：

10.1007/s10853-011-5338-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new strategy to tackle the orientation-relaxation of the chromophores was developed and used to prepare a film which was consisted of polymethyl methacrylate (PMMA) and photo-cross-linkable polyurethane oligomer (PU). The PU contained spindle-type chromophore and terminated with methacrylolyl groups as cross-linkable group. The chemical reaction process was characterized by infrared spectroscopy and the structure of reaction products were characterized by NMR spectroscopy. The surface morphology of the films was investigated by atomic force microscopy (AFM) images. The electro-optic (EO) coefficient of the prepared film was measured by using Teng-Man technique. The cross-linked films containing 15 wt% of the chromophore units displayed a high EO coefficient up to 41 pm/V. The 5% weight loss temperature was 228 A degrees C for the film after photo-cross-linking. Compared with the uncross-linked films, their thermal and temporal stability were greatly improved.

引用

页码：4458 / 4464

页数：7

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