会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 8. 发明授权
    • Method of making graft polymers
    • 接枝聚合物的制备方法
    • US5986015A
    • 1999-11-16
    • US858070
    • 1997-05-16
    • Sanjeev MidhaTimothy Roy Nijakowski
    • Sanjeev MidhaTimothy Roy Nijakowski
    • C08F4/10A61K8/895A61K8/897A61K8/91A61Q3/02A61Q5/06A61Q17/04A61Q19/00C08F4/40C08F265/04C08F291/00C08C19/42
    • A61K8/895A61K8/91A61Q19/00C08F265/04C08F291/00A61Q17/04A61Q19/08A61Q3/02A61Q5/02A61Q5/06A61Q5/12C08F2438/01
    • Disclosed is an improved method of making hydrophobic and hydrophilic graft polymers, which method comprises the steps of (a) reacting copolymerizable monomers to form an organic polymeric backbone having a weight average molecular weight of from about 15,000 grams/mole to about 200,000 grams/mole and a plurality of organic halide moieties covalently bonded to the polymeric backbone and pendant from the polymeric backbone and then, without a separate purification or isolation step; (b) reacting copolymerizable monomers with the organic halide moieties of the polymeric backbone by atom transfer free radical polymerization in the presence of a catalytic amount of a Cu(I) salt or other transition metal species complexed to a ligand suitable for solubilizing the salt in the reaction mixture to form a plurality of polymeric side chains covalently bonded to the polymeric backbone and pendant from the polymeric backbone and having a weight average molecular weight of from about 500 grams/mole to about 200,000 grams/mole, wherein the polymeric back bone and the plurality of polymeric side chains form hydrophilic and hydrophobic graft polymers having a weight average molecular weight of from about 16,000 grams/mole to about 10,000,000 grams/mole.
    • 公开了一种制备疏水和亲水性接枝聚合物的改进方法,该方法包括以下步骤:(a)使可共聚单体反应形成重均分子量为约15,000克/摩尔至约200,000克/摩尔的有机聚合物主链 和多个有机卤化物部分,共价键合到聚合物骨架上,并且从聚合物骨架悬挂,然后没有单独的纯化或分离步骤; (b)使可共聚单体与聚合物主链的有机卤化物部分通过原子转移自由基聚合在催化量的Cu(I)盐或与适合于将盐溶解的配体络合的其它过渡金属物质存在下反应 所述反应混合物形成多个聚合物侧链,所述聚合物侧链共价键合到所述聚合物骨架上,并且所述聚合物侧链与所述聚合物主链侧链并且具有约500克/摩尔至约200,000克/摩尔的重均分子量,其中所述聚合物背骨和 多个聚合物侧链形成重均分子量为约16,000克/摩尔至约10,000,000克/摩尔的亲水和疏水接枝聚合物。