采用熔融缩聚反应合成了一系列聚(D，L-乳酸)(PDLLA)／聚乙二醇单甲醚(mPEG)两亲性二嵌段共聚物(PEDLLA)，采用纳米沉淀技术制备PEDLLA纳......

Methoxypolyethylene glycols of 5000 dalton(PEG) have been attached covalentlyto human serum immunoglobulin G using 2,4,6......