Synthesis and properties of a novel highly thermal stable N-propargyl monomer containing benzoxazole ring

被引：2

作者：

Yang, Guang ^{[1
]}

Wang, Chengbo ^{[1
]}

Liu, Chao ^{[1
]}

Yang, Zhiyong ^{[1
,2
]}

Hou, Xianghui ^{[3
]}

机构：

[1] Beihang Univ, Sch Mat Sci & Engn, Beijing, Peoples R China

[2] Aerosp Res Inst Mat & Proc Technol, Ctr Struct Composite Mat, Beijing, Peoples R China

[3] Univ Nottingham, Fac Engn, Nottingham, England

来源：

HIGH PERFORMANCE POLYMERS | 2018年 / 30卷 / 02期

关键词：

Propargyl; benzoxazole; thermal stability; phase-transfer catalysis; purification; CURING KINETICS; POLYMERIZATION; POLYMERS; RESINS; UNITS; ETHER;

D O I：

10.1177/0954008317690432

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 novel highly thermal stable propargyl functional compound containing benzoxazole ring, N, N, N, N-tetra propargyl-5-amino-2-(p-aminophenyl) benzoxazole (TPAPB), was proposed and synthesized using a phase-transfer catalytic method. The cure behavior of TPAPB was investigated by non-isothermal differential scanning calorimetry analysis. The solubility and rheological properties of TPAPB, as well as its broad temperature window from 130 degrees C to 200 degrees C with low viscosity, offered excellent processability for TPAPB to be used as a potential monomer of thermosetting polymer resin. It was found that the glass transition temperature of cured TPAPB was 359 degrees C, and the temperature of 5% weight loss was 418 degrees C in argon with the char residue up to 70% at 700 degrees C. The polymerized resin exhibited high heat resistance and thermal stability, together with its processability, making it good candidate as highly heat-resistant polymer matrix for advanced composite applications.

引用

页码：239 / 246

页数：8

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