二甲基苯酚钾作助引发剂的烯烃阴离子调节聚合(英文)  

Anionic Telomerization of Diene with Potassium Dimethylphenoxide as Promoter

作　　者：任艳[1] 王玉荣[1] 刘海峰[1] 林春清 张春庆[1] 

机构地区：[1]大连理工大学化工学院,辽宁大连116012 [2]大连供电公司,辽宁大连116011

出　　处：《中山大学学报（自然科学版）》2005年第A02期36-38,共3页Acta Scientiarum Naturalium Universitatis Sunyatseni

摘　　要：采用合成时环境友好,在四氢呋喃中溶解性良好的二甲基苯酚钾作助引发剂,正丁基锂为引发剂、二甲苯为溶剂兼作链转移剂、2G为极性调节剂对二烯烃阴离子调聚进行了研究。考察了不同D_ROK/ n_BuLi对聚合物的特性粘度、分子量、分子量分布及微观结构的影响关系。制得的液体聚丁二烯和聚异戊二烯可用作绿色涂料的原料。In this communication, anionic telomerization of hutadiene and isoptene with n-BuLi us the initiator, potassium dimethylphenoxide （D-ROK） us the promoter, xylene as the transfer agent as well as the solvent in the presence of diglycoldintethylether （2G） as the polar modifier was studied. Solubility of D-ROK in tetrahdrofuran （TIIF） at different temperature was invcstigatcd. Effects of D-ROK / n-BuLi on intrinsic viscosity （ [η] ）, chain transient number （ Nt ）, relative molecular mass （ Mn^- ） and microstructure of the polymers were examined. Raising D-ROK/n-BuLi, resulted in increasing of Nt and deceasing of [η] and Mn. Liquid rubber produced this way can be used as material for green coating.

关 键 词：绿色涂料 液体橡胶 链转移次数 相对分子量 微观结构 

分 类 号：TQ317[化学工程—高聚物工业]