Photoinitiators having chain transfer groups polymerized to obtain macrophotoinitiators useful to give block copolymers
    1.
    发明授权
    Photoinitiators having chain transfer groups polymerized to obtain macrophotoinitiators useful to give block copolymers 失效
    具有链转移基团的光引发剂被聚合以获得可用于产生嵌段共聚物的大分子引发剂

    公开(公告)号:US06458864B1

    公开(公告)日:2002-10-01

    申请号:US09701457

    申请日:2000-11-27

    IPC分类号: C08F250

    摘要: Compounds with chain transfer groups of the formula I, II, III and IV wherein a is 1 or 2; Ar and Ar1 inter alia are phenyl; Ar2 inter alia is phenylene, these groups being unsubstituted or substituted; X is a direct bond, —O—, —S— or —N(R6)—; Y inter alia is hydrogen or C1-C12alkyl; M1 is —NR3R4 or —OH, or M1 is Ar when R1 and R2 are alkoxy, or aryloxy; R1 and R2 independently of one another e.g. are C1-C8alkyl; R3 and R4 for example are C1-C12alkyl, or together are C3-C7alkylene; R5 inter alia is C1-C6alkylene or a direct bond; R6 is for example hydrogen; and Z is a divalent radical, provided that at least one of the radicals Ar, Ar1, Ar2, R1, R2, R3, R4, R5 or Y is substituted by SH groups; are suitable for the thermal preparation of macrophotoinitiators which are polymerized photochemically to give block-copolymers.

    摘要翻译: 具有式I,II,III和IV的链转移基团的化合物是1或2; Ar和Ar1特别是苯基; Ar2特别是亚苯基,这些基团是未取代的或取代的; X是直接键,-O - , - S-或-N(R6) - ; Y尤其是氢或C 1 -C 12烷基; 当R1和R2为烷氧基时,M1为-NR3R4或-OH,或M1为Ar,或为芳氧基; R1和R2彼此独立地例如。 是C 1 -C 8烷基; R 3和R 4例如是C 1 -C 12烷基,或一起是C 3 -C 7亚烷基; R5尤其是C1-C6亚烷基或直接键; R6是例如氢; 并且Z是二价基团,条件是基团Ar,Ar 1,Ar 2,R 1,R 2,R 3,R 4,R 5或Y中的至少一个被SH基取代;适用于光化学聚合的高分子引发剂的热制备 得到嵌段共聚物。