%0 Journal Article
%T ANALYSIS OF N-H STRETCHING VIBRATION IN INFRARED SPECTRA OF POLYETHER-POLYURETHANE<br>聚醚氨酯红外N—H伸缩振动谱带分析
%A WANG Ying-kang
%A LI Xuan
%A <br>王盈康
%A 李玄
%J 高分子学报
%D 1989
%I 
%X N-H stretching regions of Infrared spectra of polyether urethane polymers prepared by a two-step or one-step polymerization reaction have been compared and their differences indicate the existence of differences in the frequecy and the amount of N-H,,,-O- and N-H.. ..O=C hydrogen bonding formed. Quenching to Lower temperature to retain the degree of phase mixing at the elevated temperature, N-H stretching vibration at 3295 cm-1 which is hydrogen bonded with -O- of soft segments and the vibration hydrogen bonded with C = O of hard segments at 3330 cm-1 have been directly observed. The frequency at 3295 cm-1 of N-H stretching vibration hydrogen bonded with-O- has been confirmed by the spectrum of polyether urethane dissolved in THF solvent.
%K Polyether-polyurethane
%K Segmented Copolymer
%K Microphase separation
%K Infrared Spectroscopy
%K Hydrogen Bond<br>聚醚氨酯
%K 多嵌段共聚物
%K 红外光谱
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=15971983683C7643EE80F1CE621DEB60&aid=4D5DE0FCBDB6C37E&yid=1833A6AA51F779C1&iid=94C357A881DFC066&sid=F9A6B6F259CE5121&eid=AE43DE0664B02889&journal_id=1000-3304&journal_name=高分子学报&referenced_num=0&reference_num=2