双酚A型聚芳醚腈共聚物的合成与性能

Synthesis and Properties of Bisphenol A-type PEN Copolymer

以双酚A(BP-A),间苯二酚(RS)和2,6-二氯苯甲腈(DCBN)为原料,在常压下通过溶液缩聚合成了一种无定形双酚-A型聚芳醚腈及其共聚物[PEN(BP-A/RS)]。用IR、DSC、TG等对PEN(BP-A/RS)共聚物结构、热性能和力学性能进行了研究。结果表明,其聚合物为无定形高分子,并且具有较高的热稳定性和力学性能,玻璃化转变温度Tg随共聚物的组成不同而变化(158～174℃),5%热失重温度为484～505℃,拉伸强度为88～92 MPa。

A series of novel bisphenol A-type poly （arylether nitrile）/resorcinol （PEN （BP-A/RS）） were synthesized by the polycondensation from BP-A, RS and 2, 6-dichlorobenzonitrile （DCBN） as raw material under the normal pressure. The structure, thermal and mechanical properties of the PEN（BP-A/RS） composites were studied by IR, DSC, TG and other means. The results showed that the polymer was amorphous polymer, and had high thermal stability and mechanical properties, the glass transition temperatures Tg were in the range of 158 - 174 ℃ , the 5% weight loss temperature was found between 484 -505 ℃ , and the tensile strength was in the range of 88 -92 MPa.