文献类型：期刊文献

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

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

年份：2009

卷号：114

期号：5

起止页码：3026

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：;EI(收录号：20093812325275);WOS:【SCI-EXPANDED(收录号:WOS:000270497200055)】；

语种：英文

外文关键词：polybenzoxazine; polyarylacetylene; resin transfer molding; char yield

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