Rheological behaviour and cure kinetic studies of a trifunctional phenylethynyl-terminated imide oligomer

被引：14

作者：

Yang, Ming ^{[1
]}

Wang, Daming ^{[1
]}

Sun, Ningwei ^{[1
]}

Chen, Chunhai ^{[1
]}

Zhao, Xiaogang ^{[1
]}

机构：

[1] Jilin Univ, Alan G MacDiarmid Inst, Changchun 130012, Peoples R China

来源：

HIGH PERFORMANCE POLYMERS | 2015年 / 27卷 / 04期

关键词：

Polyimides; PETI; rheological behaviour; kinetics; POLYIMIDE OLIGOMERS; THERMAL CURE; THERMOSETS; VISCOSITY; RESIN;

D O I：

10.1177/0954008314555521

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 phenylethynyl-terminated imide oligomer (PETI)was prepared from a triamine and 4-phenylethynylphthalic anhydride. The oligomer can be used to prepare high performance resin-based composite material via resin transfer moulding due to its low melt viscosity. The cured resin also exhibited excellent thermal stability with 5% weight loss at temperature above 531 degrees C and higher glass transition temperature T-g (410 degrees C) than PETI series as a result of the introduction of star-branched units. The rheological properties of the oligomer were measured and numerically fit with the dual Arrhenius model. The curing of the resin was also studied by dynamic and isothermal differential scanning calorimetry measurements. Based on the experimental data, both the curing reaction rate and the curing degree were calculated in the dynamic mode and tested under isothermal conditions.

引用

页码：449 / 457

页数：9

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