文献类型：期刊文献

英文题名：Preparation and properties of bismaleimide resin blended with alkynyl-terminated modifiers

作者：Zhang, Hui[1];Wang, Linxiang[2];Yuan, Qiaolong[1];Zheng, Qing[2];Wan, Liqiang[1];Huang, Farong[1]

机构：[1]East China Univ Sci & Technol, Key Lab Specially Funct Polymer Mat & Related Tec, Minist Educ, Sch Mat Sci & Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Shanghai Inst Xinli Power Equipment, Shanghai, Peoples R China

年份：2021

卷号：33

期号：10

起止页码：1192

外文期刊名：HIGH PERFORMANCE POLYMERS

收录：;EI(收录号：20213210735815);WOS:【SCI-EXPANDED(收录号:WOS:000680122500001)】；

基金：This work is supported by "the Fundamental Research Funds for the Central Universities" (50321042017001) and grant no. JKD01211701.

语种：英文

外文关键词：Bismaleimide; alkynyl-terminated modifier; blend; thermal property; mechanical property

摘要：A kind of modified bismaleimide resin, with good processability, heat resistance, and impact strength was developed, using 4,4(')-dipropargyloxydiphenyl ether (DPEDPE), N-(4-propargyloxyphenyl)maleimide (4-PPM), and 3-ethynylphenyl maleimide (3-EPM) as modifiers. The DPEDPE, 4-PPM, and 3-EPM were synthesized and characterized by Fourier transform infrared spectroscopy (FTIR) and H-1-nuclear magnetic resonance (H-1 NMR), and used to modify the N,N-'-(4,4(')-diphenylmethane)bismaleimide (BDM)/2,2(')-diallyl bisphenol A (DABPA) resin system (BD) to obtain the different blend resin systems of DPEDPE-modified BD (BDD), 4-PPM-modified BD (BDP), and 3-EPM-modified BD (BDE). The curing temperature of BD resin increases with increase of the alkynyl-terminated modifier content. The processability of BD resin was improved with addition of the propargyloxy-terminated compounds. The temperature of 5% weight loss, residual yield at 800 degrees C and glass transition temperature of the cured BD resin increase with increase of the alkynyl-terminated modifier content and can reach 443 degrees C, 46.7% and higher than 380 degrees C. The tensile strength of the cured BD resin decreases with increase of alkynyl-terminated modifier content. The impact strength of the cured BD resin increases with increase of the propargyloxy-terminated compound content and can increase by 65%. The tensile strength, elastic modulus, and impact strength of the cured BD resin blended with DPEDPE can be 73.7 MPa, 4.1 GPa, and 19.6 kJ m(-2), respectively. Moreover, the cured BD resin blended with DPEDPE has good water absorption resistance.