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......

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

Six new thermally stable polyesters (4a-f) were synthesized through the solution polycondensation reaction of 2,5-pyridi......

Six new polyesters 7a-f were synthesized through the solution polycondensation reaction of diacid chloride 5 with six ar......

Objective: To study the feasibility of regenerating a whole menisci using poly-(3- hydroxybutyrate-co-3-hydroxyvalerate)......