文献类型：期刊文献

英文题名：Preparation and properties of silicon-containing arylacetylene resin/benzoxazines blends

作者：Gao, Yu[1];Zhou, Yan[1];Huang, Farong[1];Du, Lei[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Specially Funct Polymer Mat & Related Tec, Minist Educ, Shanghai 200237, Peoples R China

年份：2013

卷号：25

期号：4

起止页码：445

外文期刊名：HIGH PERFORMANCE POLYMERS

收录：;EI(收录号：20132316404990);WOS:【SCI-EXPANDED(收录号:WOS:000319611400008)】；

基金：We gratefully acknowledge the Shanghai Leading Academic Discipline Projects (B502).

语种：英文

外文关键词：Benzoxazine; thermosets; polymer blends; silicon-containing arylacetylene resin; thermal stability

摘要：A series of aniline-based bifunctional benzoxazines (BZs) were synthesized using solventless or solvent method via the Mannich condensation reactions. The chemical structures of these BZs were confirmed using Fourier-transform infrared and proton-nuclear magnetic resonance spectroscopies. The polymer blends were prepared by mixing silicon-containing arylacetylene (poly(dimethylsilyleneethynylenephenyleneethynylene) (PSA)) resin with BZ in weight ratios at 110 degrees C until a homogeneous viscosity liquid was obtained. The resultant blends were characterized by solubility tests, rheological analyses, differential scanning calorimetry, dynamic mechanical analyses and thermogravimetric analyses. The good solubility and low melt viscosity of the blends indicated excellent processability. The curing reactions resulted in the formation of interpenetrating polymer networks. The cured blends exhibited high glass transition temperatures (T(g)s) and thermal stabilities. The compressive strength and flexural strength of the blend casts improved when compared with pristine PSA.