Chlorination of polymers
    5.
    发明授权
    Chlorination of polymers 失效
    聚合物的氯化

    公开(公告)号:US4602068A

    公开(公告)日:1986-07-22

    申请号:US682549

    申请日:1984-12-17

    申请人: Klaus Bronstert

    发明人: Klaus Bronstert

    CPC分类号: C08F8/22

    摘要: Solid organic polymers are chlorinated with chlorine to give chlorinated polymers in the presence of a solvent which contains from 20 to 100% by weight of phosgene and in which the polymer is dissolved or suspended, at or below the boiling point of the mixture of chlorine and solvent, by initiating the reaction with actinic light or another initiator which produces free radicals. A mixture of not less than 50% by weight of phosgene and a chlorofluorocarbon or chlorofluorohydrocarbon, such as chlorotrifluoromethane, can also be used as the solvent, but phosgene is most suitable.

    摘要翻译: 固体有机聚合物用氯氯化,得到氯化聚合物,在溶剂存在下,该溶剂含有20至100重量%的光气,其中聚合物溶解或悬浮在氯或氯的混合物的沸点以下 溶剂,通过引发与光化反应或产生自由基的另一引发剂。 可以使用不少于50重量%的光气和氯氟化碳或氯氟代烃如氯三氟甲烷的混合物作为溶剂,但是光气是最合适的。

    Anionic polymerization of cis- and trans-1,3-pentadiene from a mixture
of saturated and unsaturated hydrocarbons
    6.
    发明授权
    Anionic polymerization of cis- and trans-1,3-pentadiene from a mixture of saturated and unsaturated hydrocarbons 失效
    来自饱和和不饱和烃的混合物的顺式和反式-1,3-戊二烯的阴离子聚合

    公开(公告)号:US4486614A

    公开(公告)日:1984-12-04

    申请号:US517171

    申请日:1983-07-25

    摘要: 1,3-pentadiene is polymerized from a mixture of saturated and unsaturated hydrocarbon compounds, the compounds having primarily 5 carbon atoms per molecule, with an anionic polymerization initiator. The mixture of saturated and unsaturated hydrocarbon compounds is contacted, in an inert atmosphere, with an anionic polymerization initiator to form a reaction mixture. The anionic polymerization initiator is present in an amount sufficient to inactivate polymerization-terminating compounds present in the mixture and to initiate polymerization of 1,3-pentadiene from the mixture. The reaction mixture is heated with stirring to a temperature sufficient to inactivate the polymerization terminating compounds. After inactivation of the polymerization terminating compounds, the reaction mixture is then heated with stirring to a temperature sufficient to initiate polymerization of 1,3-pentadiene from the reaction mixture. Polymer recovery and subsequent functionalization, if any, follow thereafter.

    摘要翻译: 1,3-戊二烯由饱和和不饱和烃化合物的混合物聚合,每分子具有大约5个碳原子的化合物与阴离子聚合引发剂一起聚合。 饱和和不饱和烃化合物的混合物在惰性气氛中与阴离子聚合引发剂接触以形成反应混合物。 阴离子聚合引发剂的存在量足以使存在于混合物中的聚合终止化合物失活并引发1,3-戊二烯从混合物中的聚合。 将反应混合物在搅拌下加热至足以灭活聚合终止化合物的温度。 在聚合终止化合物失活后,然后将反应混合物在搅拌下加热至足以引发来自反应混合物的1,3-戊二烯聚合的温度。 聚合物回收和随后的功能化(如果有的话)随后进行。