Journal
REACTIVE & FUNCTIONAL POLYMERS
Volume 70, Issue 12, Pages 972-979Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.reactfunctpolym.2010.10.007
Keywords
Ramie fiber; Supercritical carbon dioxide; Grafting modification; 2,2,2-Trifluoroethyl methacrylate; RAFT
Funding
- National Natural Science Foundation of China (NSFC) [20976102]
- 973 Program of China [2009CB226105]
Ask authors/readers for more resources
Reversible addition-fragmentation chain transfer (RAFT) polymerization was used to control the grafting of 2,2,2-trifluoroethyl methacrylate (TFEMA) with ramie fibers in supercritical carbon dioxide (scCO(2)). The hydroxyl groups of the ramie fibers were converted to 2-dithiobenzoyl isobutyrate as the RAFT chain transfer agent (cellulose-CTA). Then, the subsequent grafting with TFEMA was mediated by RAFT polymerization in the presence of 2-(ethoxycarbonyl)prop-2-yl dithiobenzoate (ECPDB) as the free RAFT chain transfer agent (free CIA). The modified ramie fibers were highly hydrophobic with water contact angles of up to 149 degrees. Size exclusion chromatography showed narrow polydispersity (PDI = 1.28) of the grafted poly(TFEMA) chains. This grafting polymerization process is a novel and environmentally friendly approach for the preparation of functional grafted copolymers utilizing ramie fiber biomass. (C) 2010 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available