Poly (N-vinylpyrrolidone) with carboxylic end groups and amino end groups (PNVP-NH2) were prepared by the chain transfer reaction in free radical polymerization.
利用普通自由基聚合中的链转移反应，分别制备了以羧基为端基的聚和以胺基为端基的聚(PNVP - NH2)。
Poly (ether imide) (PEI) is a modification kind of high performance polymer, which adds a ether bond to macromolecular chain of polyimide (PI).
聚醚酰亚胺(PEI)是在聚酰亚胺(PI)链上引入醚键形成的一类高聚物。
This paper studies the average molecular weight of branched chain of poly ( acrylic acid) by viscosity method. The structure of graft copolymer is also measured by IR method.
利用粘度法测定聚丙烯酸支链的平均分子量，红外光谱法分析接枝共聚物的结构。
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