交联聚合物微球-聚合物在水溶液中的复合.doc

文档介绍：
交联聚合物微球-聚合物在水溶液中的复合#
陈海玲1,郑晓宇1,李先杰2,范雅1,蒋庆哲1**
(1. 中国石油大学(北京),重质油国家重点实验室,北京 102249;
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2. 中海油研究总院)
摘要:疏水缔合聚合物因为疏水基团在水溶液中的疏水缔合作用形成超分子结构而具有特殊
的流变性能。为了考察交联聚合物微球和聚合物复合体系水溶液中的流变性能,本文通过环
境扫描电镜首次采用快速冷冻而后升华的实验方法观察交联聚合物微球和疏水缔合聚合物/
非疏水缔合聚合物在溶液中的复合形态,并测定了交联聚合物微球-疏水缔合聚合物/非疏
水缔合聚合物复合体系的黏浓性质和剪切恢复能力,两种实验方法的结果相互一致,证明
了疏水缔合聚合物(AP-P4)与聚合物微球之间存在着良好的协同作用,为进一步探讨二者的
复合机理奠定了基础。
关键词:交联聚合物微球;疏水缔合聚合物;复合形态;环境扫描电镜;黏温性质;剪切恢
复能力
中图分类号:
Composite forms of cross-linked polymer microsphere and
polymer in the aqueous solution
CHEN Hailing1, ZHENG Xiaoyu1, LI Xianjie2, FAN Ya1, JIANG Qingzhe1
(1. State Key Laboratory of Heavy Oil, China University of Petroleum (Beijing), Beijing 102249;
2. China National Offshore Oil Corporation)
Abstract: Hydrophobic associating polymer has special rheological properties because the
hydrophobic groups in aqueous solution produce hydrophobic association with eeach other so that
supramolecular structures can form . In order to examine rheological properties of aqueous
posite posed of cross-link polymer microspheres and polymers, in this
paper posite forms of cross-linked polymer microspheres and polymers in the aqueous
solution are observed by the environmental scanning electron microscope (ESEM) through
adopting the experimental method of rapid freezing and sublimation for the first time. The
viscosity- concentratio