新型超支化大分子RAFT试剂的合成及RAFT聚合
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- 英文论文题名：A Versatile Synthetic Route to Controllable Hyperbranched Polymer via RAFT Polymerization
- 论文作者：刘丰 ; 张东昕 ; 巴信武 ; 武永刚
- 英文论文作者：Feng Liu ; Dongxin Zhang ; Xinwu Ba ; Yonggang Wu ; College of Chemistry and Environmental Science ; Hebei University
- 年：2016
- 作者机构：河北大学;
- 论文关键词：RAFT ; CuAAC ; N-异丙基丙烯酰胺 ; RAFT自由基聚合
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第二十四分会：超分子组装与软物质材料
- 语种：中文
- 分类号：O631.5
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第二十四分会 ; 超分子组装与软物质材料
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：222k
- 原文格式：D
- 会议级别：全国
摘要
可逆加成-裂解链转移(RAFT)自由基聚合方法具有聚合条件温和、单体适应范围广等独特优点~([1,2])。超支化聚合物的结构复杂且难以调控和表征。为了更好地调控超支化聚合物的结构,本文利用RAFT聚合的优点设计了呈超支化结构的链转移试剂(CTA)~([3]),进而以苯乙烯、N-异丙基丙烯酰胺、甲基丙烯酸甲酯和丙烯酸等单体制备了相应的超支化聚合物。基于RAFT反应机理,通过控制单体的转化率、分子量等参数可以有效地调节超支化聚合物的支化度。需要指出的是,本文利用了"点击"反应制备了呈超支化结构的CTA试剂,通过表征含氮杂环的含量可以方便的表征该类超支化CTA的支化度。
We described a facile route to prepare functional macromonomers by using reversible addition fragmentation chain transfer(RAFT) polymerization and an novel reversible addition-fragmentation chain transfer(RAFT) agent had been successfully synthesized by copper-catalyzed azide-alkyne cycloaddition(CuA AC) coupling reaction~([3]). The new RAFT agent had dendrimer topological structure. RAFT polymerization of a "more activated monomer", such as styrene, methyle acrylate, and N-Isoppropylacrylamide, had been successfully achieved in oil solution using the new RAFT agent. It should be pointed out that CTA reagent with hyperbranched structure was prepared by the "click" reactions, and branching degree of this kind of hyperbranched CTA would be facilitated through the characterization of nitrogen heterocyclic content.
We described a facile route to prepare functional macromonomers by using reversible addition fragmentation chain transfer(RAFT) polymerization and an novel reversible addition-fragmentation chain transfer(RAFT) agent had been successfully synthesized by copper-catalyzed azide-alkyne cycloaddition(CuA AC) coupling reaction~([3]). The new RAFT agent had dendrimer topological structure. RAFT polymerization of a "more activated monomer", such as styrene, methyle acrylate, and N-Isoppropylacrylamide, had been successfully achieved in oil solution using the new RAFT agent. It should be pointed out that CTA reagent with hyperbranched structure was prepared by the "click" reactions, and branching degree of this kind of hyperbranched CTA would be facilitated through the characterization of nitrogen heterocyclic content.
引文
[1]Mayadunne R.T.A.,Rizzardo E,Chiefari J,Chong Y.K.,Moad G,Thang S.H.Macromolecules.1999,32(21):6977-6980.
[2]Roghani-Mamaqani H,Khezri K.Applied Surface Science.2016,360:373-382
[3]Gondi S.R.,Vogt A.P.,Sumerlin B.S.Macromolecules.2007,40(3):474-481
[2]Roghani-Mamaqani H,Khezri K.Applied Surface Science.2016,360:373-382
[3]Gondi S.R.,Vogt A.P.,Sumerlin B.S.Macromolecules.2007,40(3):474-481