摘要
采用自由基水溶液共聚合法制备了Ｐ（ＡＭ－ＮＶＰ－ＤＭＤＡ）疏水缔合水溶性共聚物。对共聚物的溶液性能进行了研究，包括盐效应、粘温关系、流变性能、热稳定性、与碱、表面活性剂的相互作用、稀溶液性质等。共聚物分子中由于引入了较多的疏水基团而具有较强的疏水缔合效应，在聚合物浓度较低时具有较高粘度。ＮＶＰ结构单元的引入可适当提高共聚物溶液的热稳定性。对共聚物溶液的电镜分析结果表明，在其水溶液中存在着微相分离结构，它对共聚物溶液的增粘起着重要作用。
A new kind of hydrophobically associating
water-soluble copo1ymer P(AM-NVP-DMDA) was synthesized by free radical copolymerization.
Synthesis, structure and solution properties of P(AM-NVP-DMDA) terpolymer were studied
including its electrolyte effect, rheological behavior, temperature dependence of viscosity,
dilute solution property, and the polymer-alkali, polymer-surfactant interaction.The copolymer
shows strong hydrophobic effect,and the copolymer aqueous brine solution exhibits high
vicosity at low polymer concentration.Incorporation of N-vinyl-pyrrolidone into the copolymer
causes an improvement in themal stabilility of the copolymer. The transmission electron
photomicrograph analysis of the copolymer indicates that the presence of the microphase
seperation of the copolymer in aqueous solution plays an important role in the viscosification
property of copolymer.
出处
《功能高分子学报》
CAS
CSCD
1999年第1期70-74,共5页
Journal of Functional Polymers
基金
国家攀登计划资助项目
关键词
三次采油
驱油剂
疏水缔合
水溶性
共聚物
hydrophobically associating water-soluble copolymer
hydrophobic monomer
surface-active
solution properties
