首页> 外文期刊>Journal of Wood Chemistry and Technology >Preparation of a Thermoplastic Lignin-Based Biomaterial through Atom Transfer Radical Polymerization
【24h】

Preparation of a Thermoplastic Lignin-Based Biomaterial through Atom Transfer Radical Polymerization

机译:通过原子转移自由基聚合制备热塑性木质素基生物材料

获取原文
获取原文并翻译 | 示例
           

摘要

Graft copolymerization of styrene onto kraft lignin (KL) was achieved by atom transfer radical polymerization (ATRP) using a fully substituted lignin-based macroinitiator (KLM). The number average of molecular mass (M-n) of polystyrene copolymer graft side-chains was achieved by varying the ratio of the DMF: water solvent system from 5:0 to 1:4. A M-n of up to approximate to 206,000 was obtained using a DMF/water ratio of 3:2 (v/v). However, as the M-n increased, the overall ATRP became less controlled. In addition, the thermal properties of the lignin-g-polystyrene copolymers improved significantly with increasing M-n of polystyrene copolymer side-chains.
机译:通过使用完全取代的木质素基大分子引发剂(KLM)进行原子转移自由基聚合(ATRP),可以实现苯乙烯在硫酸盐木质素(KL)上的接枝共聚。聚苯乙烯共聚物接枝侧链的分子量(M-n)的数均是通过将DMF:水溶剂体系的比例从5:0更改为1:4来获得的。使用3:2(v / v)的DMF /水比,可获得高达约206,000的M-n。但是,随着M-n的增加,整个ATRP的控制程度降低。另外,木质素-g-聚苯乙烯共聚物的热性能随着聚苯乙烯共聚物侧链的M-n的增加而显着改善。

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