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Vol. 30 No. 5 (2018): Vol 30 Issue 5, 2018

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Synthesis and Characterization of Random and Block-Random Diblock Silylated Terpolymers via RAFT Polymerization

https://doi.org/10.14233/ajchem.2018.21217
Minh Ngoc Nguyen
Faculty of Chemistry, VNU University of Science, 19 Le Thanh Tong, HoanKiem, Hanoi, Vietnam
Quang Trung Pham
Faculty of Chemistry, VNU University of Science, 19 Le Thanh Tong, HoanKiem, Hanoi, Vietnam
Van Dung Le
Military Medical University, 160 Phung Hung, Ha Dong, Hanoi, Vietnam
Thi Bich Viet Nguyen
Hanoi National University of Education, 136 Xuan Thuy, CauGiay, Hanoi, Vietnam
Christine Bressy
Université de Toulon, Laboratoire Matériaux Polymères Interfaces Environnement Marin (MAPIEM EA 4323), 83957 La Garde, France
André Margaillan
Université de Toulon, Laboratoire Matériaux Polymères Interfaces Environnement Marin (MAPIEM EA 4323), 83957 La Garde, France

Corresponding Author(s) : Minh Ngoc Nguyen

nmngoc@hus.edu.vn

Asian Journal of Chemistry, Vol. 30 No. 5 (2018): Vol 30 Issue 5, 2018

Abstract

Well-defined random and block-random diblock terpolymers consisting of methyl methacrylate (MMA), butyl acrylate (BA) and tert-butyldimethylsilyl methacrylate (t-BDMSMA) were successfully synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization using 2-cyanoprop-2-yl-dithiobenzoate (CPDB) as RAFT agent. 1H NMR and GPC analyses indicated the formation of random terpolymers [P(MMA-co-BA-co-t-BDMSMA)] and block-random diblock terpolymers [(PMMA-b-P(BA-co-t-BDMSMA) and Pt-BDMSMA-b-P(BA-co-MMA)] with good control of terpolymer composition, molecular weights and molecular weight distributions (Ð < 1.20). Thermal analysis results showed that the random terpolymers exhibited only one glass transition temperature (Tg) which depends on the terpolymer composition. The (PMMA-b-P(BA-co-t-BDMSMA) block-random diblock terpolymer showed two Tg that can be attributed to two blocks of terpolymer. Meanwhile, Pt-BDMSMA-b-P(BA-co-MMA) block-random diblock terpolymer exhibited only one Tg value, which is probably due to a low proportion of Pt-BDMSMA block present in the terpolymer.

Keywords

RAFT polymerization Terpolymer Trialkylsilyl methacrylate Silylated polymer
Nguyen, M. N., Pham, Q. T., Le, V. D., Viet Nguyen, T. B., Bressy, C., & Margaillan, A. (2018). Synthesis and Characterization of Random and Block-Random Diblock Silylated Terpolymers via RAFT Polymerization. Asian Journal of Chemistry, 30(5), 1125–1130. https://doi.org/10.14233/ajchem.2018.21217
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