当前位置: X-MOL 学术ACS Comb. Sci. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Semiautomated Parallel RAFT Copolymerization of Isoprene with Glycidyl Methacrylate.
ACS Combinatorial Science ( IF 3.903 ) Pub Date : 2019-11-04 , DOI: 10.1021/acscombsci.9b00110
Miguel Rosales-Guzmán 1, 2 , Odilia Pérez-Camacho 1 , Carlos Guerrero-Sánchez 2 , Simon Harrisson 3 , Román Torres-Lubián 1 , Jürgen Vitz 2 , Ulrich S Schubert 2 , Enrique Saldívar-Guerra 1
Affiliation  

Copolymerization of isoprene (IP) with glycidyl methacrylate (GMA) was performed under RAFT (reversible addition-fragmentation chain-transfer) polymerization conditions in a platform for high-output experimentation. Covering the range between 1 and 0.2 molar fraction of IP in the feed, four sets of reactions were carried out at 10, 15, 20, and 30 h at 115 °C. The kinetic data obtained were used to estimate the reactivity ratios using a nonlinear least-squares approach (NLLS). Reactivity ratios rGMA = 0.61 and rIP = 0.74 indicate that both monomers tend to crosspropagate in agreement with known literature values. Concerning the RAFT study, relatively good control and livingness of the copolymerization was observed except for the experiment in which IP represents 20 mol % in the feed. 1H NMR characterization confirmed the presence of both monomers in the final copolymer, particularly the presence of the epoxy ring of GMA which is susceptible to post polymerization reactions. Finally, preliminary results on the hydrogenation of various polymers are discussed.

中文翻译:

异戊二烯与甲基丙烯酸缩水甘油酯的半自动平行RAFT共聚。

异戊二烯(IP)与甲基丙烯酸缩水甘油酯(GMA)的共聚反应是在RAFT(可逆加成-断裂链转移)聚合条件下进行的,用于高产量实验。覆盖进料中IP的1至0.2摩尔分数的范围,在115°C下于10、15、20和30 h进行了四组反应。所获得的动力学数据用于使用非线性最小二乘法(NLLS)估算反应率。反应性比率rGMA = 0.61和rIP = 0.74表明两种单体都倾向于与已知文献值相交叉传播。关于RAFT研究,观察到相对良好的共聚控制和活性,除了其中IP占进料中20mol%的实验之外。1 H NMR表征证实了在最终共聚物中两种单体的存在,特别是对后聚合反应敏感的GMA的环氧环的存在。最后,讨论了氢化各种聚合物的初步结果。
更新日期:2019-11-04
down
wechat
bug