Synthesis and characterization of novel poly(phenylene sulfide) containing a chromophore in the main chain

被引:16
|
作者
Li, Hong [1 ]
Lv, Guo-yu [1 ]
Zhang, Gang [2 ]
Ren, Hao-hao [3 ]
Fan, Xiao-xia [1 ]
Yan, Yong-gang [1 ]
机构
[1] Sichuan Univ, Sch Phys Sci & Technol, Chengdu 610064, Peoples R China
[2] Sichuan Univ, Anal & Testing Ctr, Inst Mat Sci & Technol, Chengdu 610064, Peoples R China
[3] Guona Technol Ltd, Chengdu 610064, Peoples R China
关键词
chromophore compound; dichlorobenzene; sodium sulfide; synthesis; poly(phenylene sulfide); POLYMERIZATION CONDITIONS; POLYPHENYLENE SULFIDE; BEHAVIOR;
D O I
10.1002/pi.4698
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
A kind of novel poly(phenylene sulfide)s (PPSs) containing a chromophore group were synthesized by the reaction of dihalogenated monomer and sodium sulfide (Na2S center dot xH(2)O) via nucleophilic substitution polymerization under high pressure. The polymers were characterized by Fourier transform infrared spectroscopy, ultraviolet spectroscopy, fluorescence spectroscopy, XRD, DSC, TGA, mechanical testing and dissolvability experiments. The intrinsic viscosity of the polymers obtained with optimum synthesis conditions was 0.22-0.38 dl g(-1) (measured in 1-chloronaphthalene at 208 degrees C). These polymers were found to have good thermal performance with a glass transition temperature (T-g) of 90.5-94.6 degrees C and initial degradation temperature (T-d) of 475-489 degrees C, showing improved thermal properties compared with homo-PPS. At the same time the resultant resins had a high tensile strength of 67.5-74.1 MPa and compressive strength of 70.7-85.4 MPa. Additionally, these polymers exhibited a weak UV-visible reflectivity minimum at 450-570 nm, and the fluorescence spectra of the polymers showed maximum emission around nearly 370 nm. Also they showed excellent chemical resistance and another special property-bright shiny colors changed into different colors in acid solution. (C) 2014 Society of Chemical Industry
引用
收藏
页码:1707 / 1714
页数:8
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