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
    • 6. 发明公开
    • CONTROL OF MOLECULAR WEIGHT AND END-GROUP FUNCTIONALITY IN POLYMERS
    • 聚合物中分子量和端基功能的控制
    • EP0853634A1
    • 1998-07-22
    • EP96931683.0
    • 1996-10-04
    • COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATIONE.I. DU PONT DE NEMOURS AND COMPANY
    • RIZZARDO, EnzioTHANG, San, HoaMOAD, GraemeCHONG, Yen, Kwong
    • C08L101C08F2C08F14C08F214C08F290C08F293C09D201C09J201
    • C08F290/04C08F2/38C08F14/06
    • This invention relates to a process for the production of lower molecular weight polymers by free radical-initiated polymerization of unsaturated species characterised by the use of an unsaturated compound of Formula (I) as a chain transfer agent wherein R?1 and R2¿ are the same or different and are selected from the group consisting of hydrogen, optionally substituted alkyl, optionally substituted saturated or aromatic carbocyclic or heterocyclic ring, and halogen; X is selected from the group consisting of chlorine, bromine, optionally substituted alkylsulfonyl, and optionally substituted arylsulfonyl; Y is selected from the group consisting of halogen, a polymer chain, and CR3R4Z, wherein R?3 and R4¿ are the same or different and are selected from the group consisting of hydrogen, optionally substituted alkyl, optionally substituted saturated, unsaturated or aromatic carbocyclic or heterocyclic ring, and halogen; and Z is selected from the group consisting of chlorine, bromine, optionally substituted alkylsulfonyl and optionally substituted arylsulfonyl; provided that when X is optionally substituted alkylsulfonyl or optionally substituted arylsulfonyl, Y is not halogen. The invention also relates to various polymers produced by this process and products comprising these polymers. The process of the invention may also be used in the preparation of A-B type block copolymers.
    • 本发明涉及一种通过不饱和物质的自由基引发聚合生产低分子量聚合物的方法,其特征在于使用式(I)的不饱和化合物作为链转移剂,其中R 1和R 2是 相同或不同,并且选自氢,任选取代的烷基,任选取代的饱和或芳族碳环或杂环以及卤素; X选自氯,溴,任选取代的烷基磺酰基和任选取代的芳基磺酰基; Y选自卤素,聚合物链和CR 3 R 4 Z,其中R 3和R 4相同或不同,选自氢,任选取代的烷基,任选取代的饱和,不饱和或芳族 碳环或杂环和卤素; 且Z选自氯,溴,任选取代的烷基磺酰基和任选取代的芳基磺酰基; 条件是当X是任选取代的烷基磺酰基或任选取代的芳基磺酰基时,Y不是卤素。 本发明还涉及由该方法生产的各种聚合物和包含这些聚合物的产品。 本发明的方法也可以用于制备A-B型嵌段共聚物。