Polymers containing cyclic ether units joined through 2,6-diyl linkages
    91.
    发明授权
    Polymers containing cyclic ether units joined through 2,6-diyl linkages 失效
    含有环醚单元的聚合物通过2,6-二烯键连接

    公开(公告)号:US4260702A

    公开(公告)日:1981-04-07

    申请号:US97138

    申请日:1979-11-26

    CPC分类号: C08G61/08 C08G59/14 C08G85/00

    摘要: Polymers that have a number average molecular weight of at least 1000 and that contains at least 5% by weight of segments that contain at least two consecutively recurring cyclic ether units wherein at least one of said tetrahydropyran 2,6-diyl unit of the formula ##STR1## and wherein the remainder of said cyclic ether units are selected from said tetrahydropyran 2,6-diyl units and tetrahydrofuran 2,5-diyl units of the formula ##STR2## wherein R.sup.1, R.sup.8, R.sup.9, R.sup.10, R.sup.11, R.sup.12, R.sup.13 and R.sup.14 are each selected from hydrogen and lower alkyl groups;R.sup.2 and R.sup.7 are each selected from hydrogen, lower alkyl groups and aryl groups;R.sup.4 and R.sup.5 are each selected from hydrogen, lower alkyl groups, aryl groups and halo; andR.sup.3 and R.sup.6 are selected from hydrogen, lower alkyl groups and aryl groups or combine to form a divalent linking moiety having the formula ##STR3## wherein C.sup.7 and C.sup.8 are joined to the C.sup.3 and C.sup.5 positions respectively of said cyclic ether units; W, X, Y and Z are each monovalent groups or W and Z are each monovalent groups and X and Y combine to form a divalent linking moiety, that bridges between C.sup.7 and C.sup.8.

    摘要翻译: 具有数均分子量至少为1000并且含有至少5重量%的包含至少两个连续重复的环醚单元的链段的聚合物,其中至少一个所述四氢吡喃2,6-二基单元, 并且其中所述环醚单元的剩余部分选自所述四氢吡喃2,6-二基单元和式IMA的四氢呋喃2,5-二基单元,其中R 1,R 8,R 9,R 10,R 11,R 12,R 13 和R 14各自选自氢和低级烷基; R2和R7各自选自氢,低级烷基和芳基; R4和R5各自选自氢,低级烷基,芳基和卤素; 或者R 3和R 6选自氢,低级烷基和芳基,或结合形成具有下式的二价连接部分:其中C7和C8分别连接到所述环醚单元的C3和C5位; W,X,Y和Z分别是一价基团或W和Z各自是一价基团,X和Y组合形成二价连接部分,其桥接在C7和C8之间。