环糊精加速疏水缔合聚合物溶解机理研究  

Study on the mechanism of accelerating the dissolution of hydrophobically associative polymer by cyclodextrin

作　　者：李玺 罗平亚[3] 叶仲斌[3] 舒政[3] 赵文森[4] 肖秀婵[1] LI Xi;LUO Ping-ya;YE Zhong-bin;SHU Zheng;ZHAO Wen-sen;XIAO Xiu-chan(School of Materials and Environmental Engineering,Chengdu Technological University,Chengdu 611730,China;College of Chemistry and Chemical Engineering,Southwest Petroleum University,Chengdu 610500,China;State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu 610500,China;State Key Laboratory of Offshore Oil Exploitation,Beijing 100028,China)

机构地区：[1]成都工业学院材料与环境工程学院,四川成都611730 [2]西南石油大学化学化工学院,四川成都610500 [3]西南石油大学油气藏地质及开发工程国家重点实验室,四川成都610500 [4]海洋石油高效开发国家重点实验室,北京100028

出　　处：《应用化工》2021年第9期2401-2405,共5页Applied Chemical Industry

基　　金：国家自然科学基金青年基金项目(21705011);国家科技重大专项(CCL2018RCPS0037RON)。

摘　　要：利用环糊精(CD)对疏水基团的包合作用,在疏水缔合聚合物溶解过程中向溶剂中加入环糊精,加快疏水缔合聚合物的溶解速度。当环糊精与疏水基团摩尔比(CD∶[H])≤1,随CD∶[H]增大,溶解时间大幅下降。当CD∶[H]=10时,缔合聚合物的溶解时间缩短至与聚丙烯酰胺相当。流变学结果证明,环糊精通过包合作用破坏疏水基团的缔合结构,大幅缩短缔合聚合物解缠结时间来加速疏水缔合聚合物的溶解速度。Cyclodextrins(CD)are used to accelerate the dissolution of the hydrophobically associative polymer by the inclusion of hydrophobes.When the molar ratio of cyclodextrin to hydrophobes(CD∶[H])≤1,the dissolution time of the hydrophobically associative polymer decreases rapidly as CD∶[H]increases.When CD∶[H]=10,the dissolution time of the associative polymer is shortened to be equivalent to that of polyacrylamide.Rheology results shown that CD can significantly shorten the disentanglement time of the hydrophobically associative polymers to accelerates the dissolution rate by disrupting association structures of hydrophobes.As a result,the dissolution rate is accelerated.

关 键 词：溶解 疏水缔合聚合物 环糊精 包合作用 流变学 

分 类 号：TQ423[化学工程] TE357.2[石油与天然气工程—油气田开发工程]