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Polyurea microcapsules from isocyanatoethyl methacrylate copolymers
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Risangud, Nuttapol , Congdon, Thomas R., Keddie, Daniel J., Wilson, Paul , Kempe, Kristian and Haddleton, David M. (2016) Polyurea microcapsules from isocyanatoethyl methacrylate copolymers. Polymer Chemistry, 54 (17). pp. 2698-2705. doi:10.1002/pola.28149 ISSN 1759-9954.
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Official URL: http://dx.doi.org/10.1002/pola.28149
Abstract
The synthesis of two types of isocyanate side chain
containing copolymers, poly(methyl methacrylate-co-isocyanatoethyl
methacrylate) (P(MMA-co-IEM)) and poly(benzyl methacrylate-co-isocyanatoethyl methacrylate) (P(BnMA-co-IEM)),
which were synthesized by Cu(0)-mediated radical polymerization,
is reported. Polymerization proceeded to high conversion
giving polymers of relatively narrow molar mass distributions.
The incorporation of the bulky aromatic groups in the latter
copolymer rendered it sufficiently stable toward hydrolysis and
enabled the isolation of the product and its characterization by
1
H and 13C NMR, and FTIR spectroscopy and SEC. Both
P(MMA-co-IEM) and P(BnMA-co-IEM) were functionalized with
dibutylamine, octylamine, and (R)-(1)-a-methylbenzyl-amine,
which further proved the successful incorporation of the isocyanate
groups. Furthermore, P(BnMA-co-IEM) was used for
the fabrication of liquid core microcapsules via oil-in-water
interfacial polymerization with diethylenetriamine as crosslinker.
The particles obtained were in the size range of 10–90
mm in diameter independent of the composition of copolymer
Item Type: | Journal Article | ||||||||||
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Subjects: | Q Science > QD Chemistry T Technology > TP Chemical technology |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||||||||
Library of Congress Subject Headings (LCSH): | Copolymers , Polymerization , Isocyanates, Microspheres | ||||||||||
Journal or Publication Title: | Polymer Chemistry | ||||||||||
Publisher: | Royal Society of Chemistry | ||||||||||
ISSN: | 1759-9954 | ||||||||||
Official Date: | 1 September 2016 | ||||||||||
Dates: |
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Volume: | 54 | ||||||||||
Number: | 17 | ||||||||||
Page Range: | pp. 2698-2705 | ||||||||||
DOI: | 10.1002/pola.28149 | ||||||||||
Status: | Peer Reviewed | ||||||||||
Publication Status: | Published | ||||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||||
Date of first compliant deposit: | 5 May 2016 | ||||||||||
Date of first compliant Open Access: | 19 July 2017 | ||||||||||
Funder: | Thailand. Government, Wolfson Foundation (WF), Royal Society (Great Britain) |
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