基于主链的PPEGMEMA- b -PBTFVPP- b -PPEGMEMA基于全氟环丁基芳基醚的两亲ABA三嵌段共聚物:合成与自组装
摘要:
一系列基于全氟环丁基丁基芳基醚的两亲ABA三嵌段共聚物,由亲水性聚[聚(乙二醇)甲基丙烯酸甲酯](PPEGMEMA)和疏水性聚(2,2'-双(4-三氟乙烯基-氧苯基)丙烷)(PBTFVPP)组成)区块是通过网站转换策略合成的。首先通过BTFVPP三氟乙烯基芳基醚单体的热逐步增长环加成聚合反应制备半氟化PBTFVPP段,然后将其末端官能化,转化为在每个末端带有一个ATRP起始基团的Br-PBTFVBP-Br大分子引发剂。具有相对窄分子量分布的目标PPEGMEMA- b -PBTFVPP- b -PPEGMEMA三嵌段共聚物(M w/中号Ñ ≤1.32)的合成通过ATRP被Br-PBTFVBP -溴大分子引发剂引发PEGMEMA大分子单体。使用荧光探针技术确定水溶液中获得的两亲共聚物的临界胶束浓度(cmc)。通过透射电子显微镜研究了由共聚物形成的胶束的形态。结果表明,这种三嵌段共聚物可以在不同
A new class of methacrylate monomers containing perfluorocyclobutyl unit was synthesized in multisteps including crossing-dimerization, demethylation and esterification using commercially available p-substituted phenol, tetrafluoroethylene and methacryloyl chloride as starting materials. These monomers can be polymerized in solution to provide perfluorocyclobutyl-based polymethacrylate, a kind of potential transparent material. (C) 2009 Elsevier B.V. All rights reserved.
US7214475B2
申请人:——
公开号:US7214475B2
公开(公告)日:2007-05-08
US7674876B2
申请人:——
公开号:US7674876B2
公开(公告)日:2010-03-09
Main-chain PPEGMEMA-b-PBTFVPP-b-PPEGMEMA perfluorocyclobutyl aryl ether-based amphiphilic ABA triblock copolymer: synthesis and self-assembly
A series of perfluorocyclobutylarylether-basedamphiphilic ABA triblock copolymers consisting of hydrophilic poly[poly(ethylene glycol) methyl ether methacrylate] (PPEGMEMA) and hydrophobic poly(2,2′-bis(4-trifluorovinyl-oxyphenyl)propane) (PBTFVPP) blocks were synthesized via the site transformation strategy. A semi-fluorinated PBTFVPP segment was first prepared via thermal step-growth cycloaddition
一系列基于全氟环丁基丁基芳基醚的两亲ABA三嵌段共聚物,由亲水性聚[聚(乙二醇)甲基丙烯酸甲酯](PPEGMEMA)和疏水性聚(2,2'-双(4-三氟乙烯基-氧苯基)丙烷)(PBTFVPP)组成)区块是通过网站转换策略合成的。首先通过BTFVPP三氟乙烯基芳基醚单体的热逐步增长环加成聚合反应制备半氟化PBTFVPP段,然后将其末端官能化,转化为在每个末端带有一个ATRP起始基团的Br-PBTFVBP-Br大分子引发剂。具有相对窄分子量分布的目标PPEGMEMA- b -PBTFVPP- b -PPEGMEMA三嵌段共聚物(M w/中号Ñ ≤1.32)的合成通过ATRP被Br-PBTFVBP -溴大分子引发剂引发PEGMEMA大分子单体。使用荧光探针技术确定水溶液中获得的两亲共聚物的临界胶束浓度(cmc)。通过透射电子显微镜研究了由共聚物形成的胶束的形态。结果表明,这种三嵌段共聚物可以在不同
Synthesis of Aryl Perfluorocyclopropyl Ethers via [2 + 1] Cyclopropanation Using TMSCF<sub>2</sub>Br Reagent
作者:Ran Liu、Jinbo Hu
DOI:10.1021/acs.orglett.2c00958
日期:2022.5.27
Aryl perfluorocyclopropyl ethers have been synthesized for the first time by [2 + 1] cyclopropanation between aryl trifluorovinyl ethers and a commercially available TMSCF2Br reagent. This cycloaddition reaction between two fluorine-containing reactants proceeds smoothly in toluene at 120 °C in the presence of a catalytic amount of n-Bu4NBr, and the reaction tolerates a variety of functional groups