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    • 5. 发明申请
    • PHOTOACTIVATABLE CHAIN TRANSFER AGENTS
    • 可转换链转移代理
    • WO1997034935A1
    • 1997-09-25
    • PCT/US1997005344
    • 1997-03-20
    • BSI CORPORATION
    • BSI CORPORATIONSWANSON, Melvin, J.AMOS, Richard, A.SWAN, Dale, G.OPPERMAN, Gary, W.
    • C08F02/50
    • C08J7/047C07C323/12C07C323/22C07C323/41C07C323/42C08F2/38C08J2323/12C08J2433/00C08J2439/00C08J2485/00Y10S522/904Y10S522/905
    • A photoactivatable reagent useful as a chain transfer reagent for providing a semitelechelic polymer having one or more terminal photoactivatable groups. The reagent provides one or more photoactivatable groups and one or more sulfhydryl (or other chain transfer) groups, the photoactivatable and chain transfer groups optionally being joined together by a spacer group. The reagent can be used to prepare a polymer by serving to initiate the polymerization of ethylenically unsaturated monomers. The reagent itself becomes an integral part of the resultant polymer, thereby providing the polymer with a terminal photoactivatable nature. The method provides a number of benefits, including the ability to provide homogeneous photoactivatable polymer compositions, e.g., in terms of the uniform location of the photogroup(s) on the terminal portion of each polymer molecule and the ability to build a desired nonpolar quality, and in turn improved surfactancy, into otherwise polar polymers.
    • 可用作链转移试剂的可光活化试剂,用于提供具有一个或多个末端可光活化基团的半夺食聚合物。 试剂提供一个或多个可光活化基团和一个或多个巯基(或其它链转移基团),光可活化链和链转移基团任选地通过间隔基团连接在一起。 该试剂可用于通过用于引发烯属不饱和单体的聚合来制备聚合物。 试剂本身成为所得聚合物的组成部分,从而为聚合物提供端可光活化的性质。 该方法提供了许多益处,包括提供均匀可光活化的聚合物组合物的能力,例如,就各组分在每个聚合物分子的末端部分的均匀位置而言,以及建立期望的非极性质量的能力, 并进而改善表面活性,成为其他极性聚合物。