Functionalization of cellulose with epoxy groups via γ-initiated RAFT-mediated grafting of glycidyl methacrylate

被引：41
作者：
Barsbay, Murat [1 ]
Kodama, Yasko [2 ]
Guven, Olgun [1 ]
机构：
[1] Hacettepe Univ, Dept Chem, TR-06800 Ankara, Turkey
[2] Nucl & Energy Res Inst IPEN CNEN SP, BR-05508000 Sao Paulo, Brazil
来源：
CELLULOSE | 2014年 / 21卷 / 06期
关键词：
Cellulose; Glycidyl methacrylate (GMA); RAFT mediated grafting; gamma-Irradiation; FREE-RADICAL COPOLYMERIZATION; CHAIN TRANSFER POLYMERIZATION; RADIATION; STYRENE; SURFACE; VINYL; POLYMERS; KINETICS; STRATEGY;
D O I：
10.1007/s10570-014-0416-y
中图分类号：
TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];
学科分类号：
0805 ; 080502 ; 0822 ;
摘要：
Glycidyl methacrylate (GMA), was grafted from cellulose by the combination of radiation-induced initiation and the reversible addition-fragmentation chain transfer (RAFT) polymerization technique, leading to epoxy functionalized surfaces that enable further modifications. Cumyl dithiobenzoate and 2-cyanoprop-2-yl dithiobenzoate were employed as the RAFT agents. The effects of absorbed dose, monomer and RAFT agent concentrations and solvent choice on grafting yield were investigated. Characterization of the synthesized copolymers by ATR-FTIR spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy, thermal analysis and contact angle measurements revealed the grafting of poly(glycidyl methacrylate) (PGMA) from cellulose. Size-exclusion chromatography analysis indicated the difficulty of controlling the polymerization of GMA due to branching and/or crosslinking reactions that might occur in PGMA structure under gamma-radiation.
引用
收藏
页码：4067 / 4079
页数：13
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