Journal
POLYMER
Volume 52, Issue 13, Pages 2729-2734Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2011.04.027
Keywords
Particle; Organotellurium-mediated living radical; polymerization (TERP); Emulsion polymerization
Categories
Funding
- Japan Society for the Promotion of Science (JSPS) [21245050]
- JSPS for Young Scientists
- Grants-in-Aid for Scientific Research [10J01926, 21245050] Funding Source: KAKEN
Ask authors/readers for more resources
Behavior of the particle formation based on self-assembling in emulsifier-free, organotellurium-mediated living radical emulsion polymerization (emulsion TERP) of styrene was studied from the molecular weight distributions (MWDs) of polystyrene (PS) formed in an initial stage of the polymerization at different temperatures from 50 degrees C to 70 degrees C. As the polymerization temperature was decreased, the larger number of poly(methacrylic acid) (PMAA: degree of polymerization, 30)-methyltellanyl (TeMe) (PMAA(30)-TeMe) participated in the polymerization, resulting in amphiphilic PMAA(30)-b-PS-TeMe oligomers. Almost all control agents were consumed and a self-assembly nucleation occurred in the initial stage of the polymerization at 50 degrees C, which lead to depress of particle formation of a homogeneous nucleation. The consumption rate of PMAA(30)-TeMe affected directly the particle formation. From these results, it is concluded that it is important for the emulsion TERP of styrene with excellent control/livingness that the self-assembly nucleation proceeds without the homogeneous nucleation in the initial stage of the polymerization. (c) 2011 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