Preparation and Characterization of PMMA and its Derivative via RAFT Technique in the Presence of Disulfide as a Source of Chain Transfer Agent

Abstract

Poly(methyl methacrylate) (PMMA) were synthesized by using chain transfer agents(CTA), S-1-Dodecyl-S-(,-dimethyl-acetic acid) trithiocarbonate (MTTCD), S,S-bis (2-hydroxyethyl-2-dimethylacrylate) trithiocarbonate (BDATC), 2-cyanoprop-2-yl dithiobenzoate (CPDB) respectively, through the reversible addition fragmentation chain transfer (RAFT) polymerization under a range of synthesis conditions. The results indicated that the structure of the endgroup of RAFT agents had significant effects on the ability to control polymerization. Compared with MTTCD and CPDB, BDATC can provide better control over the relative molecular mass, distribution and polymerization of PMMA. The derived well-controlled block copolymer PMMA-b-PDMAEMA and PMMA-b-PDMAEA were also successfully prepared by using N, N-dimethylaminoethy acrylate (DMAEA) or N, N-dimethylaminoethyl methacrylate (DMAEMA) as the second monomer. The chemical composition and structure of the products were characterized by FTIR, o C.

Transpicuous-Cum-Fouling Resistant Copolymers of 3-Sulfopropyl Methacrylate and Methyl Methacrylate for Optronics Applications in Aquatic Medium and Healthcare

“…The absorption value at 1381 cm -1 was due to OCH 3 deformation of PMMA [39]. The characteristic signals observed at 1265 cm -1 and 1145 cm -1 correspond to C-O-C stretching and bending, respectively [39]. The FTIR band at 1193 cm −1 was due to -OCH 3 stretching vibration.…”

“…1 H-NMR Spectroscopy. The 1 H-NMR spectrum of P(SPMA-co-MMA) copolymer's PSM50 sample in Figure 3 has illustrated that the different chemical shift peaks in DMSO at 343 K corresponded to various proton environments in different chemical moieties present in copolymer [39]. Signals of MMA and SPMA are well observed in the spectrum.…”

“…The signals at 1190 cm -1 and 1041 cm -1 were assigned to symmetric stretching vibration and asymmetric stretching vibration of the SO 3 group [30]. In the FTIR spectrum of PMMA, the band at 1433 cm -1 was assigned to the asymmetric bending vibration of the CH 3 group of PMMA [39]. The absorption value at 1381 cm -1 was due to OCH 3 deformation of PMMA [39].…”

“…In the FTIR spectrum of PMMA, the band at 1433 cm -1 was assigned to the asymmetric bending vibration of the CH 3 group of PMMA [39]. The absorption value at 1381 cm -1 was due to OCH 3 deformation of PMMA [39]. The characteristic signals observed at 1265 cm -1 and 1145 cm -1 correspond to C-O-C stretching and bending, respectively [39].…”