%0 Journal Article
%T STUDY ON THE SEQUENCE STRUCTURE OF METHYL METHACRYLATE-STYRENE (M-S) COPOLYMERS BY INFRARED SPECTROSCOPY<br>用红外光谱研究甲基丙烯酸甲酯-苯乙烯共聚物序列结构
%A Chang Xian-wang
%A Chu Shan-nung
%A Jin Shun-zi
%A Liu Lan-chen
%A <br>张宪旺
%A 朱善农
%A 金顺子
%A 刘兰珍
%J 高分子学报
%D 1980
%I 
%X A series of M-S low conversion copolymers were prepared by free radical polymerization and their IR spectra were measured.The 1149.5 cm-1 band which is related to a skeletal vibration coupled with CH deformation vibration in PMMA, is shifted to lower wave number with a decrease in the content of MMA in the copolymer.Two results can be drawn:(1) The correlation curve between this band position and the sequence length of M unit in the copolymer is obtained.(2) The displacement of wave number of this band is approximately propop-tional to FSMS which is defined as the mole fraction of SMS in trids of SMS.MMS.SMM.and MMM. Other environmental-sensitive bands which depend on sequence distribution were also discussed.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=15971983683C7643EE80F1CE621DEB60&aid=BBC350D165346E50&yid=E56875464B1C0EC1&iid=0B39A22176CE99FB&sid=AE09EACBCD1B2A13&eid=6FBD78E3BAB60869&journal_id=1000-3304&journal_name=高分子学报&referenced_num=0&reference_num=0