Moisture tolerant cationic RAFT polymerization of vinyl ethers
Moisture tolerant cationic RAFT polymerization of vinyl ethers
复制标题
乙烯基醚的耐湿阳离子 RAFT 聚合
DOI：
10.1039/d2py00780k
复制
发表时间：
2022
影响因子：
4.6
通讯作者：
Fors, Brett P.
中科院分区：
文献类型：
--
作者：
Shankel, Shelby L.;Lambert, Tristan H.;Fors, Brett P.
阳离子可逆加成-破碎链转移（RAFT）聚合技术使得乙烯醚和具有可预测摩尔质量和易于修饰的硫代羰基硫代链末端的苯乙烯类化合物的可控聚合成为可能。然而，大多数阳离子RAFT系统需要高纯度试剂和低温的惰性反应条件。我们的团队最近开发了一种不需要这些严格条件的活性阳离子聚合，利用强有机酸（五碳甲氧基环戊二烯（PCCP））和氢键供体。通过将我们的PCCP酸促进聚合与链转移剂相结合，我们设计了一种耐受性阳离子RAFT系统，可以在室温下干净、开放地进行。此外，该系统允许我们利用催化量的PCCP酸来提供具有链端功能的聚合物，可以很容易地分离和进一步操作以制造功能材料。
Cationic reversible addition–fragmentation chain transfer (RAFT) polymerizations have permitted the controlled polymerization of vinyl ethers and select styrenics with predictable molar masses and easily modified thiocarbonylthio chain ends. However, most cationic RAFT systems require inert reaction conditions with highly purified reagents and low temperatures. Our groups recently developed a living cationic polymerization that does not require these rigorous conditions by utilizing a strong organic acid (pentacarbomethoxycyclopentadiene (PCCP)) and a hydrogen bond donor. By combining our PCCP acid promoted polymerization with a chain transfer agent, we have designed a tolerant cationic RAFT system that can be performed neat, open to the air, and at room temperature. Additionally, this system allows us to utilize catalytic amounts of the PCCP acid to furnish polymers with chain end functionality that can be easily isolated and further manipulated to make functional materials.
聚(叔丁基乙烯基醚-b-异丁烯-b-叔丁基乙烯基醚)三嵌段共聚物的合成、表征和形貌
DOI：
--
发表时间：
2004
期刊：
影响因子：
--
作者：
Yonghua Zhou;R. Faust;Shujun Chen;S. Gido
通讯作者：
S. Gido
影响因子：
4.9
作者：
Cranwell, Philippa B.;Hiscock, Jennifer R.;Gale, Philip A.
通讯作者：
Gale, Philip A.