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    • 6. 发明申请
    • Polymerization Process with catalyst reactivation
    • 催化剂再活化聚合过程
    • US20090312505A1
    • 2009-12-17
    • US11990841
    • 2006-08-28
    • Krzysztof MatyjaszewskiWojciech JakubowskiJames Spanswick
    • Krzysztof MatyjaszewskiWojciech JakubowskiJames Spanswick
    • C08F4/42
    • C08F2/40C08F4/04C08F4/40C08F212/08C08F212/10Y02P20/584C08F220/12
    • Polymerization processes of the present invention comprise low catalyst concentration. Embodiments include a polymerization process comprising polymerizing free radically (co)polymerizable monomers in a polymerization medium comprising one or more radically (co)polymerizable monomers, a transition metal catalyst complex capable of participating in a one electron redox reaction with an ATRP initiator; a free radical initiator; and an ATRP initiator; (wherein the concentration of transition metal catalyst complex in the polymerization medium is less than 100 ppm). Further embodiments include a polymerization process, comprising polymerizing one or more radically (co)polymerizable monomers in the presence of at least one transition metal catalyst complex; and an ATRP initiator; and a reducing agent; wherein the transition metal catalyst complex is present at less than 10″3 mole compared to the moles of radically transferable atoms or groups present on the ATRP initiator.
    • 本发明的聚合方法包括低催化剂浓度。 实施方案包括聚合方法,其包括在包含一种或多种自由基(共)可聚合单体的聚合介质中自由基(共)可聚合单体聚合,能够与ATRP引发剂参与一电子氧化还原反应的过渡金属催化剂络合物; 自由基引发剂; 和ATRP引发剂; (其中聚合介质中过渡金属催化剂配合物的浓度小于100ppm)。 另外的实施方案包括聚合方法,包括在至少一种过渡金属催化剂络合物的存在下聚合一种或多种自由基(共)可聚合单体; 和ATRP引发剂; 和还原剂; 其中与ATRP引发剂上存在的可自由基转移的原子或基团的摩尔数相比,过渡金属催化剂络合物的存在量小于10'3摩尔。