Nitroxide-mediated graft copolymerization of styrene from cellulose and its polymer/montmorillonite nanocomposite

被引：11

作者：

Abbasian, Mojtaba ^{[1
]}

Bakhshi, Mojtaba ^{[1
]}

Jaymand, Mehdi ^{[2
]}

Karaj-Abad, Saber Ghasemi ^{[1
]}

机构：

[1] Payame Noor Univ, Dept Chem, POB 19395-3697, Tehran, Iran

[2] Tabriz Univ Med Sci, Immunol Res Ctr, Tabriz, Iran

来源：

JOURNAL OF ELASTOMERS AND PLASTICS | 2019年 / 51卷 / 05期

关键词：

Cellulose; polystyrene; TEMPO-mediated polymerization; montmorillonite; nanocomposite; RADICAL POLYMERIZATION; BACTERIAL CELLULOSE; PERFORMANCE; POLYACRYLONITRILE; ESTERIFICATION; PERMEABILITY; NANOCRYSTALS; MEMBRANE; POLYMERS; CHITOSAN;

D O I：

10.1177/0095244318799498

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nitroxide-mediated polymerization was successfully employed for well-defined graft copolymerization of styrene (St) monomer from cellulose (Cell) backbone. For this purpose, Cell was acylated by 2-bromoisobutyryl bromide, and then 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO) was immobilized onto Cell backbone using a nucleophilic substitution reaction to produce Cell-TEMPO macroinitiator. Afterward, St monomer was grafted onto Cell backbone through "grafting from" technique. The successful synthesis of Cell-g-polystyrene (PSt) copolymer was confirmed using Fourier transform infrared and proton nuclear magnetic resonance spectroscopies and scanning electron microscopy analysis. Finally, Cell-g-PSt/montmorillonite nanocomposite was fabricated through solution intercalation approach. The thermal properties and structural morphology of the resultant nanocomposite were investigated using thermogravimetric analysis and differential scanning calorimetry and transmission electron microscopy, respectively.

引用

页码：473 / 489

页数：17

共 51 条

[41] Concurrent Cellulose Hydrolysis and Esterification to Prepare a Surface-Modified Cellulose Nanocrystal Decorated with Carboxylic Acid Moieties [J].