1) reversible addition fragmentation chain transfer(RAFT)
可逆加成断链链转移
1.
Then,the copolymerization of styene and N-substituted maleimide with active side-group such as carboxyl and hydroxyl were investigated by the process of reversible addition fragmentation chain transfer(RAFT).
在此基础上,采用可逆加成断链链转移(RAFT)聚合方法研究了含羧基和羟基等活泼基团的N-取代马来酰亚胺和苯乙烯的共聚合反应,取得了以下结果: 成功得合成了分子量分布较窄的N-羧基苯基马来酰亚胺(CPMI)与苯乙烯(St)的共聚物(P-CPMI-St)和N-羟基苯基马来酰亚胺(HPMI)与St的共聚物(P-HPMI-St),Mw/Mn<1。
2) Reversible addition-fragmentation chain transfer
可逆加成-断裂链转移
1.
Reversible addition-fragmentation chain transfer(RAFT) polymerization is one of the techniques employed to obtain living/controlled radical polymerization.
与其它可控/活性自由基聚合相比,可逆加成-断裂链转移(RAFT)自由基聚合具有适用单体范围广、反应条件温和、不受聚合实施方法的限制等优点,因此成为目前高分子合成研究最为活跃的领域之一。
2.
By reversible addition-fragmentation chain transfer(RAFT) free radical polymerization,an azido-capped poly(isopropylacrylamide)(3) was synthesized in the presence of 2.
S-十二烷基-S-′(2-羧基-异丙基)三硫羧酸酯与叠氮乙醇反应合成了一种新型叠氮链转移剂(2);在2存在下通过可逆加成-断裂链转移(RAFT)自由基聚合合成了含叠氮端基的聚N-异丙基丙烯酰胺(3)。
3.
This paper summarized the application development of reversible addition-fragmentation chain transfer radical polymerization(RAFT) on polymer molecular design.
总结了近十年来可逆加成-断裂链转移聚合技术的制备方法在聚合物分子设计领域的研究进展。
3) reversible addion-fragmentation chain transfer
可逆加成-断裂链转移
1.
A amphiphilic block copolymer dispersant poly(styrene-b-acrylic acid)(PS-bPAA)was synthesized by reversible addion-fragmentation chain transfer(RAFT) living free-radical polymerization,using styrene(St) and acrylic acid(AA) as monomer,benzyl dithiobenzoate as chain transfer agent,2,2′-azobis(2-cyanopropane)(AIBN) as initiator.
以苯乙烯和丙烯酸为单体,二硫代苯甲酸苄酯为链转移剂,偶氮二异丁腈作为引发剂,采用可逆加成-断裂链转移活性自由基聚合方法合成了两亲性嵌段共聚物分散剂聚苯乙烯-b-聚丙烯酸(PS-b-PAA),探讨了影响聚合反应的主要因素,用GPC,IR,1H NMR对其结构进行了表征。
2.
A amphiphilic block copolymer dispersant poly(styrene-b-acrylic acid)(PS-b-PAA)was synthesized by reversible addion-fragmentation chain transfer(RAFT) living free-radical polymerization,using styrene(St) and acrylic acid(AA) as monomer,benzyl dithiobenzoate as chain transfer agent,2,2′-azobis(2-cyanopropane)(AIBN) as initiator.
以苯乙烯(St)和丙烯酸(AA)为单体,二硫代苯甲酸苄酯为链转移剂,偶氮二异丁腈(AIBN)作为引发剂,采用可逆加成-断裂链转移(RAFT)活性自由基聚合方法合成了两亲性嵌段共聚物分散剂聚苯乙烯-b-聚丙烯酸(PS-b-PA A),探讨了影响聚合反应的主要因素,用GPC、IR1、HNMR对其结构进行了表征。
4) Reversible addition-fragmentation chain transfer(RAFT)
可逆加成断裂链转移(RAFT)
5) reversible addition-fragmentation chain transfer agent
可逆加成-断裂链转移剂
6) reversible addition-fragmentation chain transfer (RAFT)
可逆加成-断裂链转移(RAFT)
1.
Reversible addition-fragmentation chain transfer (RAFT) polymerization not only can synthesize a wide range of polymers with narrow molecular weight distributions, but also can design polymers with complex architectures like blocks, stars and combs.
可逆加成-断裂链转移(RAFT)聚合不仅可以实现众多单体的活性自由基聚合,合成窄分子量分布聚合物,还能设计和合成具有复杂拓扑结构的聚合物,如嵌段,星型和梳型聚合物等。
补充资料：链转移作用(chaintransfer)
【链转移作用】(chaintransfer)连锁聚合反应中活性中心从增长链转移到另一分子的过程。活性中心数目不变，增长着的大分子链失去活性，形成稳定大分子，降低了产物的分子量。由于产生了又可引发单体的新活性中心，所以聚合速率不变。大分子活性链可以向单体、溶剂、引发剂、大分子链和链转移剂发生链转移。在离子型聚合中，不存在双基终止，这是造成活性链终止的主要形式。在游离基型聚合中，常用加入链转移剂来降低聚合物的分子量。例如，在丁苯橡胶的生产中常加入
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条