Cross-linked polyamides (cPAs) were prepared through direct bulk Michael addition and subsequent polycondensation.Severa......

以丁二胺、己二酸为原料,经过成盐、预聚、后聚3个步骤得到黏均分子质量为40 000左右的聚酰胺46(PA46),并详细考察了PA46盐p H、预......

本文通过对荣华二采区10...

为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......

In this work, two new diacids, di(m-carboxyphenyl) succinate (m-dCPS) and di(o-carboxyphenyl) succinate (o-dCPS), were s......

Direct melt/solid polycondensation of lactic acid (LA) was carried out to obtain high molecular weight poly(lactic acid)......

A new diamine containing sulfone,sulfide and amide groups was synthesized via a three-step reaction process. The nucleop......

A diamine containing ether and ester units,as basic monomer for the preparation of polyamides,was prepared via three con......

1IntroductionIn this paper, a novel water-soluble block copolymer with rod-coil structures was prepared using polyfluore......

本文通过对荣华二采区10...

Ethylene glycol aluminum was prepared efficiently and characterized by FT-IR and NMR. It exhibited higher catalytic acti......