Polyamides Containing Thiadiazole Units:Synthesis and Optical Properties

被引：3

作者：

Zhimin Li ^{[1
]}

张刚 ^{[2
]}

Dongsheng Li ^{[2
]}

杨杰 ^{[2
,3
]}

机构：

[1] College of Polymer Materials Science and Engineering of Sichuan University

[2] Institute of Materials Science & Technology,Analytical & Testing Center,Sichuan University

[3] State Key Laboratory of Polymer Materials Engineering (Sichuan University)

来源：

Chinese Journal of Polymer Science | 2014年 / 32卷 / 03期

关键词：

Synthesis; Optical property; Soluble; Heterocycle;

D O I：

暂无

中图分类号：

O631.3 [高聚物的化学性质];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Highly refractive and transparent polyamides containing thiadiazole units have been developed.These polymers were prepared by a polycondensation reaction of 4,4'-(1,3,4-thiadiazole-2,5-thio) bis(methylene) dibenzoyl chloride(TDTBM-DC) and diamine which contained thioether(―S―) and sulfone units.They showed good thermal stabilities such as a relatively high glass transition temperature of 206-233 °C and a 5% weight-loss temperature(T5%) of 376-395 °C.The optical transmittance of the polymer at 450 nm is higher than 83%.The heterocycle units and plural ―S― linkages provide the polymer with a high refractive index of 1.716-1.725 at 633 nm and a low birefringence of 0.003-0.004.Also they showed improved solubility in polar aprotic solvents and could form moderate strength films with tensile strength of 72.8-83.1 MPa and storage modulus of 1.0-1.8 GPa(at 200 °C).

引用

页码：292 / 304

页数：13

共 5 条

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[2]

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[4]

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[5]

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