首页> 外文会议>Conference on Osterreichische polymertage >Modified Polypropylenes by Copolymerization with Nonconjugated Dienes and Additional Chemical Reactions
【24h】

Modified Polypropylenes by Copolymerization with Nonconjugated Dienes and Additional Chemical Reactions

机译:通过与非共轭二烯的共聚合和另外的化学反应进行改性聚丙烯

获取原文

摘要

Modified polypropylenes were synthesized by Copolymerization of propene with several nonconjugated dienes using a constrained geometry catalyst in combination with methylaluminoxane. The incorporation of the dienes yields in polymer structures containing both cyclic units and linear branches, respectively. By variation of the polymerization conditions the cyclization tendency can be reduced. The resulting propene/diene copolymers are equipped with higher amounts of pendant double bonds which can be used for following chemical reactions. As an example, the epoxidation of the free double bonds was carried out using several epoxidation reagents. In a further modification step, the ring opening of the epoxy groups is presented demonstrating the simplicity of the chemical modification possibilities of such polypropylene materials.
机译:通过使用约束的几何催化剂与甲基铝氧烷组合的具有几个非共轭二烯的丙烯共聚合通过与几个非共轭二烯共聚合成改性聚丙烯。将二烯的掺入分别在含有循环单元和线性分支的聚合物结构中产生。通过聚合条件的变化,可以降低环化趋势。所得丙烯/二烯共聚物配备有较多的垂料双键,其可用于以下化学反应。作为一个例子,使用几种环氧化试剂进行游离双键的环氧化。在进一步的修改步骤中,呈现环氧基的环开口,证明了这种聚丙烯材料的化学改性可能性的简单性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号