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Kinetic Studies of Atom Transfer Radical Polymerisations of Styrene and Chloromethylstyrene with Poly(3-hexyl thiophene) Macroinitiator
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Document Title
Kinetic Studies of Atom Transfer Radical Polymerisations of Styrene and Chloromethylstyrene with Poly(3-hexyl thiophene) Macroinitiator
Author
Rattanathamwat N, Wootthikanokkhan J, Nimitsiriwat N, Thanachayanont C, Asawapirom U
Name from Authors Collection
Affiliations
King Mongkuts University of Technology Thonburi; King Mongkuts University of Technology Thonburi; National Science & Technology Development Agency - Thailand; National Metal & Materials Technology Center (MTEC); National Science & Technology Development Agency - Thailand; National Nanotechnology Center (NANOTEC)
Type
Article
Source Title
ADVANCES IN MATERIALS SCIENCE AND ENGINEERING
Year
2015
Volume
2015
Open Access
Green Submitted, gold
Publisher
HINDAWI LTD
DOI
10.1155/2015/973632
Format
Abstract
Poly(3-hexyl thiophene)-b-poly(styrene-co-chloromethylstyrene) copolymers, to be used as a prepolymer for preparing donor-acceptor block copolymers for organic solar cells, have been synthesised by reacting P3HT macroinitiators with styrene and chloromethylstyrene via three types of atom transfer radical polymerisation (ATRP) systems, which are (1) a normal ATRP, (2) activators generated by electron transfer (AGET), and (3) a simultaneous reverse and normal initiation (SR&NI). The kinetics of these ATRP systems were studied as a function of monomers to the macroinitiator molar ratio. It was found that all of the three types of ATRP systems led to first order kinetics with respect to monomers. The highest rate constant (k) of 3.4 x 10(-3) s(-1) was obtained from the SR&NI ATRP system. The molecular weights of the product determined by the GPC were lower than were the theoretical values. The result was discussed in light of the chain transfer reaction to the poly(chloromethylstyrene) repeating units. Morphology of the synthesized block copolymers, examined by an atomic force microscopy (AFM), were also compared and discussed.
Industrial Classification
Knowledge Taxonomy Level 1
Knowledge Taxonomy Level 2
Knowledge Taxonomy Level 3
Funding Sponsor
National Nanotechnology Center (NANOTEC) [P10-10588]; Nanotechnology Center (NANOTEC), NSTDA, Ministry of Science and Technology, Thailand, through Center of Excellence Network programme
License
CC-BY
Rights
Authors
Publication Source
WOS