WSEAS Transactions on Biology and Biomedicine


Print ISSN: 1109-9518
E-ISSN: 2224-2902

Volume 14, 2017

Notice: As of 2014 and for the forthcoming years, the publication frequency/periodicity of WSEAS Journals is adapted to the 'continuously updated' model. What this means is that instead of being separated into issues, new papers will be added on a continuous basis, allowing a more regular flow and shorter publication times. The papers will appear in reverse order, therefore the most recent one will be on top.


Synthesis of Reactive Acrylic Copolymers Using RAFT Mini-Emulsion Polymerization Technique

AUTHORS: Onur Yilmaz, Çiğdem Kiliçarislan Özkan, Catalina N. Yilmaz, Ali Yorgancioğlu, Hasan Özgünay, Hüseyin Ata Karavana

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ABSTRACT: Acrylic copolymers carrying reactive functional groups have great attention since they are used in many fields such as composites, coatings, membranes, catalysis, biology, optoelectronics, pharmaceuticals, etc. Many efforts are being done for synthesis of these polymers with controlled molecular weight and architectures. Present study deals with the synthesis of functional acrylic copolymers carrying alkoxysilane and epoxy reactive groups via RAFT mini emulsion polymerization. For this purpose three copolymers were synthesized composed of (1) poly(butyl acrylate-co-methylmethacrylate-co-vinyl trietoxysilane) [p(MMA-co-BA-co-VTES)], (2) poly(butyl acrylate-co-methylmethacrylate-co-3-trimetoxysilylpropyl methacrylate) [p(MMA-co-BA-co-TMSPMA)], (3) poly(butyl acrylate-co-methylmethacrylate-co- glycidyl methacrylate) [p(MMA-co-BA-co-GMA)] using 2-cyano 2-propyldodecyldithiocarbonate as RAFT agent. The results showed that the conversion ratios were high and the average molecular weights of copolymers were close to the theoretical values. On the other hand, PDI values were found to be higher than conventional RAFT polymers. The particle sizes of the latexes were small with very homogenous distributions and good stability. FTIR, H-NMR, DSC and TGA results verified the success of copolymer syntheses.

KEYWORDS: Functional acrylic copolymers, RAFT, Mini-emulsion, alkoxysilane, epoxy

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WSEAS Transactions on Biology and Biomedicine, ISSN / E-ISSN: 1109-9518 / 2224-2902, Volume 14, 2017, Art. #21, pp. 154-162


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