环糊精用于测定疏水缔合聚合物特性黏数  

Determination of Intrinsic Viscosity of Hydrophobic Association Polymer Using Cyclodextrin

作　　者：李玺[1] 罗平亚[2] 叶仲斌[1,2] 舒政[2,3] 赵旭斌[4] 杨梅[1] 徐金腾 

机构地区：[1]西南石油大学化学化工学院,四川成都610500 [2]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 [3]西南石油大学石油与天然气工程学院,四川成都610500 [4]中国石油新疆油田分公司百口泉采油厂,新疆克拉玛依834000

出　　处：《精细化工》2016年第12期1405-1408,共4页Fine Chemicals

基　　金："十三五"国家科技重大专项项目(2016ZX05025-003)~~

摘　　要：利用环糊精疏水空腔对疏水基团的包合作用,用毛细管法测定了疏水缔合聚合物在不同物质的量之比的环糊精/疏水基团〔n(CD)∶n[H]〕溶液中的特性黏数,通过一点法和外推法计算了聚合物的特性黏数。两种方法计算得到的结果相互吻合,分别为1 027.2 m L/g和1 028.3 m L/g。随n(CD)∶n[H]的增大,疏水缔合聚合物的特性黏数先增加后稳定;Huggins参数先降低后逐渐平稳。结果表明,环糊精通过对疏水基团的包合作用改变了疏水缔合聚合物的特性黏数,过量的环糊精对聚合物的特性黏数没有明显的影响。The intrinsic viscosities of hydrophobic association polymer solution with various molar ratios of cyclodextrin and hydrophobes [ n （CD）：n [ H ] were measured by capillary method and calculated by one point method and extrapolation method respectively. The results obtained by the two methods were 1 027. 2 mL/g and 1 028.3 mL/g, respectively, which were consistent with each other. With the increase of n （ CD ） ： n [ H ], the intrinsic viscosity of the hydrophobic associating polymer increased initially and then kept stable,and the Flory-Huggins interaction parameter decreased initially and then gradually smoothed. The results of the comparison experiment showed that the inclusion association between eyclodextrin with associating polymer changed viscosities of the hydrophobi hydrophilic group made the intrinsic viscosities of the hydrophobic Moreover, the excess cyclodextrin had no obvious effect on the intrinsic c associating polymer.

关 键 词：特性黏数 疏水缔合聚合物 环糊精 聚电解质效应 油田化学品 

分 类 号：O631.1[理学—高分子化学]