Article Dans Une Revue Asian Journal of Chemistry Année : 2018

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

Résumé

Well-defined random and block-random diblock terpolymers consisting of methyl methacrylate (MMA), butyl acrylate (BA), and tert-butyldimethylsilyl methacrylate (tBDMSMA) 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-tBDMSMA)] and block-random diblock terpolymers [(PMMA-b-P(BA-co-tBDMSMA) and PtBDMSMA-b-P(BA-co-MMA)] with good control of terpolymer composition, molecular weights, and molecular weight distributions (Đ < 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-tBDMSMA) block-random diblock terpolymer showed two Tg that can be attributed to two blocks of the terpolymer. Meanwhile, the PtBDMSMA-b-P(BA-co-MMA) block-random diblock terpolymer exhibited only one Tg value, which is probably due to a low proportion of PtBDMSMA block present in the terpolymer.

Dates et versions

hal-01878417 , version 1 (21-09-2018)

Identifiants

Citer

Minh Ngoc Nguyen, Quang Trung Pham, van Dung Le, Thi Bich Viet Nguyen, Christine Bressy, et al.. Synthesis and Characterization of Random and Block-Random Diblock Silylated Terpolymers via RAFT Polymerization. Asian Journal of Chemistry, 2018, 30 (5), pp.1125 - 1130. ⟨10.14233/ajchem.2018.21217⟩. ⟨hal-01878417⟩

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