%0 Journal Article
%T MOLECULAR WEIGHT DETERMINATION OF COPOLYETHER AND MIXED POLYETHER<br>1H-NMR测定聚醚多元醇分子量——共聚醚和混聚醚分子量测定
%A YONG Zhong-gen
%A WU Mei-yu
%A <br>雍忠根
%A 吴美玉
%J 高分子学报
%D 1988
%I 
%X The determination of number average molecular weight of copolyether and mixed polye-ther has been studied by use of 1H-NMR. It can be calculated by measuring the ratio of 1H-NMR absorptions of the relative protons in the polymeric structure to those of -COOCH2/2 and -COOCH ester-H. Agreement with end hydroxy chemical method was observed.
%K NMR
%K Molecular weight
%K Polyether polyols
%K Copolyether<br>核磁共振
%K 分子量
%K 聚醚多元醇
%K 共聚醚
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=15971983683C7643EE80F1CE621DEB60&aid=8C10008CD01048F9&yid=0702FE8EC3581E51&iid=B31275AF3241DB2D&sid=238BD7580EFCC5AE&eid=EB58C3052341AAA3&journal_id=1000-3304&journal_name=高分子学报&referenced_num=0&reference_num=0