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    • 10. 发明授权
    • Polymerizable cationic visco-elastic monomer fluids
    • 可聚合的阳离子粘弹性单体流体
    • US5093448A
    • 1992-03-03
    • US537839
    • 1990-06-13
    • Dennis G. Peiffer
    • Dennis G. Peiffer
    • C07C65/03C07C211/63C08F26/02C09K3/00C09K8/12C09K8/88
    • C09K8/882C07C211/63C07C65/03C08F26/02C09K3/00C09K8/12
    • The synthesis of a novel family of cationic monomers capable of forming viscoelastic fluids are described within. These monomers are formed primarily through the reaction of allyl halides and dimethyl alkylamines. The rheological properties of the fluids can be dramatically modified with changes in alkyl length and/or counterion structure. In addition, it is noted that these viscoelastic fluids have properties quite similar to conventional polymer solutions even though the former structures are held together through physical forces and not through chemical bonding as in the latter materials. In addition, the properties of this unique family of cationic monomers are capable of forming viscoelastic fluids in high brine solutions. Even though the counterion attached to the monomer contributes greatly to the rheological properties, addition of soluble acid, bases and salts do not destroy (through ion exchange mechanisms) the viscoelastic properties of these fluids.
    • 介绍了能形成粘弹性流体的新型阳离子单体家族的合成。 这些单体主要通过烯丙基卤化物和二甲基烷基胺的反应形成。 可以用烷基长度和/或抗衡离子结构的变化来显着地改变流体的流变性质。 另外,应注意的是,这些粘弹性流体具有与常规聚合物溶液非常相似的性质,即使前者的结构通过物理力而不是通过化学粘合而保持在一起,如同在后一种材料中那样。 此外,这种独特的阳离子单体族的性质能够在高盐水溶液中形成粘弹性流体。 尽管附着于单体的抗衡离子对流变特性有很大的贡献,但是添加可溶性酸,碱和盐不会破坏(通过离子交换机理)这些流体的粘弹性。