Synthesis and properties of polyamides containing high contents of thioether units

被引：27

作者：

Zhang, Gang ^{[2
]}

Li, Dong-sheng ^{[2
]}

Huang, Guang-shun ^{[3
]}

Wang, Xiao-jun ^{[2
]}

Long, Sheng-ru ^{[2
]}

Yang, Jie ^{[1
]}

机构：

[1] Sichuan Univ, State Key Lab Polymer Mat Engn China, Chengdu 610065, Peoples R China

[2] Sichuan Univ, Analyt & Testing Ctr, Chengdu 610064, Peoples R China

[3] Sichuan Univ, Coll Polymer Mat Sci & Engn China, Chengdu 610065, Peoples R China

来源：

REACTIVE & FUNCTIONAL POLYMERS | 2011年 / 71卷 / 08期

关键词：

Polyamide; Refractive index; Birefringence; Soluble; Thermo-stability; HIGH-REFRACTIVE-INDEX; AROMATIC TETRACARBOXYLIC DIANHYDRIDES; FLUORINATED POLYIMIDES; DIAMINES; METHACRYLATES; SOLUBILITY; OLIGOMERS; FILMS;

D O I：

10.1016/j.reactfunctpolym.2011.04.008

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Two kinds of monomers containing the thioether units 4,4'-thiodibenzoyl chloride (T-DC) and 4,4'-bis(4-chloroformylphenylthio)benzene (BPB-DC) were synthesized in two steps and were reacted with diamine-containing thioether (-S-) and sulfone units to prepare a polyamide containing high contents of thioether groups. The intrinsic viscosities of the polyamides were 0.81-0.93 dl/g. These polymers had good optical properties, including an optical transmittance of the aromatic polyamide film at 450 nm that was higher than 90%. Additionally, the high quantity of thioether units provided the polymers with high refractive indices of 1.710-1.716 and low birefringences of 0.007-0.009. These polyamides also had excellent thermal properties, with glass transition temperatures (T-g) of 230-246 degrees C and initial degradation temperatures (T-d) of 477-473 degrees C. Finally, they showed improved solubility in polar aprotic solvents. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：775 / 781

页数：7

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