Synthesis and Characterization of a Diblock Copolymer of Methyl Methacrylate and Vinyl Acetate by Successive Photo-Induced Charge Transfer Polymerization Using Ethanolamine as the Parent Compound

Abstract

Communication: A diblock copolymer consisting of poly(methyl methacrylate) (PMMA) and poly(vinyl acetate) (PVAc) with hydroxyl group at one end is prepared by successive charge transfer polymerization (CTP) under UV irradiation at room temperature using ethanolamine and benzophenone as a binary initiation system. The diblock copolymer PMMA‐b‐PVAc could be selectively hydrolyzed to the block copolymer of poly(methyl methacrylate) and poly(vinyl alcohol) (PVA) using sodium ethoxide as the catalyst. Both copolymers, PMMA‐b‐PVAc and PMMA‐b‐PVA, are characterized in detail by means of FTIR and 1H NMR spectroscopy, and GPC. The effect of the solvent on CTP and the kinetics of CTP are discussed.

PMMA-containing ITX Residues and its Initiation for Synthesizing PMMA-b-PSt Copolymer

“…The most recognized and practically used bimolecular free radical initiating system usually comprises an aromatic ketone and a tertiary amine, namely Norrish II initiator system. Huang (12)(13)(14)(15) synthesized diblock copolymers of PMMA-b-PVAc (poly(vinyl acetate)) or PSt-b-PVAc by a successive photoinduced polymerization, in which prepolymers with amine end groups were firstly obtained by a polymerization initiated with a binary system composed of aniline and benzophenone (BP), and secondly, using the resultant macro-electron donor for BP, the photopolymerization of vinyl acetate were initiated.…”

Synthesis and characterization of functional copolymer of Linalool and vinyl acetate: A kinetic study

“…VA copolymerizes easily with a few monomers such as ethylene, and vinyl chloride, which has a reactivity ratio close to its own. Diblock copolymers of vinyl acetate with methyl methacrylate,9 acrylonitrile, and vinyl pyrolidinone have been prepared by copolymerization in viscous and poor solvents, whereas ethylene10 and butyl acrylate have been prepared by semibatch emulsion 11. Many polymer chemists have examined isoprene for homo‐12 and copolymerization,13, 14 and a few used terpenoids such as α‐ and β‐pinene15, 16; however, linalool (acyclic monoterpenoid) is still far from being considered by researchers.…”

Synthesis and Properties of [60] Fullerene-Polymethyl Methacrylate Conjugates in Supercritical Carbon Dioxide

“…[16] UV-vis spectra were recorded using a model Genesis 10 spectrophotometer (Thermospectronic, USA). [17] The molecular weights were recorded by a Varian Pro Star GPC with 355 RI detector by using tetrahydrofurane (THF) as a mobile phase at 270 psi pressure with a flow rate of 1 mL=min, injection time of 10 min, and room temperature 37 C. Fourier transform-infrared (FT-IR) spectra were recorded on a Brucker FT-IR Spectrophotometer in KBr. [18] 1 H nuclear magnetic resonance (NMR) spectra were recorded on a Brucker Av400.…”

“…[17,21] Spectral Analysis UV-vis spectra of MMA, PMMA, and C60-PMMA were recorded in THF. Pure C60 shows kmax at 256 nm with two broad peaks at 290 nm and 331 nm.…”

“…Here, all the proton resonance signals correspond to PMMA such as 0.77, 0.95 (ÀCH 3 for syndiotactic and heterotactic configuration, respectively), and 1.80-2.10 ppm (ÀCH 2 À). [17] The main feature of the 1 HNMR spectrum is the peak corresponding to the methoxy carbon (ÀOCH 3 ) at d ¼ 3.53-3.76, which confirms the PMMA microsphere. [25,26] …”