Preparation and Characterization of High Char Yield Polybenzoxazine/Polyarylacetylene Blends for Resin-Transfer Molding

被引：20

作者：

Qi, Huimin ^{[1
]}

Pan, Guangyan ^{[1
]}

Yin, Lian ^{[1
]}

Zhuang, Yuanqi ^{[1
]}

Huang, Farong ^{[1
]}

Du, Lei ^{[1
]}

机构：

[1] E China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2009年 / 114卷 / 05期

关键词：

polybenzoxazine; polyarylacetylene; resin transfer molding; char yield; RING-OPENING POLYMERIZATION; DYNAMIC-MECHANICAL ANALYSIS; REACTIVE DILUENT; BENZOXAZINE; TEMPERATURE; IMPROVEMENT; BEHAVIOR;

D O I：

10.1002/app.30946

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Benzoxazine precursors (BOZP), 6,6'-bis(2,3-dihydro-3-(3-ethynylphenyl)-4H-1,3- benzoxazinyl)ketone and 6,6'-bis(2,3-dihydro-3-(3-ethynylphenyl)-4H-1,3-benzoxazinyl)ether were synthesized and characterized by Proton nuclear magnetic resonace (H-1-NMR) and Fourier transform infrared spectroscopy (FTIR). The polyarylacetylene (PAA) was synthesized through thermal polymerization of diethynylbenzene, and characterized by H-1-NMR, FTIR, and Differential Scanning Calorimetry (DSC). The BOZP/PAA blends were prepared with different contents of PAA, and their viscosity was measured using NDJ-79 rotating visometer. The curing behavior of BOZP/PAA blends was characterized by DSC. The thermal stability of cured BOZP/PAA blends was studied using Thermogravimetric Analysis, the results show char yield at 800 degrees C was in the range of 78-84%. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 114: 3026-3033, 2009

引用

页码：3026 / 3033

页数：8

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