期刊
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
卷 48, 期 12, 页码 2517-2524出版社
WILEY
DOI: 10.1002/pola.24024
关键词
4-acetoxystyrene; functionalization of polymers; kinetics (polym); p-acetoxystyrene; poly(4-acetoxystyrene); poly(p-acetoxystyrene); reversible addition fragmentation chain transfer (RAFT); reversible addition-fragmentation chain transfer polymerization; trithiocarbonate
资金
- National Heart Lung and Blood Institute of the National Institutes of Health [HL080729]
- National Science Foundation [DMR-0451490, DMR-0906815]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1032267] Funding Source: National Science Foundation
The kinetics of the RAFT polymerization of p-acetoxystyrene using a trithiocarbonate chain transfer agent, S-1-dodecyl-S-(alpha,alpha'-dimethyl-alpha ''-acetic acid)trithiocarbonate, DDMAT, was investigated Parameters including temperature, percentage initiator, concentration, monomer-to-chain transfer agent ratio, and solvent were varied and their impact on the rate of polymerization and quality of the final polymer examined Linear kinetic plots, linear increase of M-n with monomer conversion, and low final molecular weight dispersities were used as criteria for the selection of optimized polymerization conditions, which included a temperature of 70 or 80 degrees C with 10 mol % AIBN initiator in bulk for low conversions or in 1,4-dioxane at a monomer-to-solvent volume ratio of 1.1 for higher conversions This study opens the way for the use of DDMAT as a chain transfer agent for RAFT polymerization to incorporate p-acetoxystyrene together with other functional monomers into well-defined copolymers, block copolymers, and nanostructures. (C) 2010 Wiley Periodicals, Inc J Polym Sci Part A. Polym Chem 48 2517-2524, 2010
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