Synthesis and Evaluation of Multifunctional Anionic Initiators Based on n-BuLi and Meta-Diisopropenyl Benzene

被引：1

作者：

Cazumba, Anderson ^{[1
]}

Tauchert, Elias ^{[2
]}

Nicolini, Luis F. ^{[2
]}

Moutinho, Marcus ^{[2
]}

Pinto, Jose Carlos ^{[1
]}

机构：

[1] Univ Fed Rio de Janeiro, COPPE, Programa Engn & Quim, Cidade Univ CP 68502, BR-21941972 Rio De Janeiro, RJ, Brazil

[2] Arlanxeo Brasil, Rua Marumbi 600 Campos Eliseos, BR-25221000 Duque De Caxias, RJ, Brazil

来源：

MACROMOLECULAR SYMPOSIA | 2019年 / 383卷 / 01期

关键词：

anionic styrene polymerization; bifunctional anionic initiator; diisopropenylbenzene; n-butyl lithium; 1,3-DIISOPROPENYLBENZENE; BUTYLLITHIUM; KINETICS; STYRENE;

D O I：

10.1002/masy.201800059

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Multifunctional anionic initiators based on n-BuLi and the diolefin m-DIB (meta-diisopropenylbenzene) were synthesized and stored at different temperatures, using different polar modifier contents and solvents. Solution styrene polymerizations were then used to evaluate the performances of the produced initiators. Based on the obtained results, it is shown that the best initiators were the ones prepared at 40 degrees C, using the DTHFP/BuLi molar feed ratio of 0.1 in cyclohexane. At these preparation conditions, the produced initiator has higher contents of multifunctional species and presents higher stability. The DTHFP/n-BuLi ratio of 0.1 was shown to be the most appropriate because it minimizes the formation of oligomers and allows for suitable initiation of styrene polymerizations.

引用

页数：8

共 25 条

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