화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.25, No.9, 871-881, September, 2017
DOI10.1007/s13233-017-5105-x  Export Citation
Synthesis and Characterization of Crosslinked Transparent Poly(ester-urethane-acrylate) Containing Methyl Methacrylate
Shyam Dev Maurya1, †, Surendra K. Kurmvanshi2, Smita Mohanty1, 2, and Sanjay K Nayak1, 2
  • 1Central Institute of Plastics Engineering & Technology, Guindy, Chennai -600032, India
  • 2Laboratory for Advanced Research in Polymeric Materials, R&D wing of CIPET, Bhubaneswar -751024, India
E-mail:
The current study deals with the synthesis of various compositions of crosslinked poly(ester-urethane-acrylate) (PEUA)/methylmethacrylate (MMA) copolymer employing free radical polymerization. Initially, (1,4-butanediol) orthophthalate (BPE) polyester polyol has been synthesized by reacting 1,4 butanediol (BDO) and phthalic anhydride (PA). Subsequently the PEUA prepolymer was formed by reacting one mole of BPE with two mole of isophorone diisocyanate (IPDI) followed by end capping with two mole of 2-hydroxyethyl methacrylate (HEMA) in the presence of dibutyltin dilaurate (DBTL) catalyst. Finally, different compositions of crosslinked PEUA/MMA copolymer were prepared by reacting the PEUA prepolymer with MMA, in the presence of 1% azobisisobutyronitrile (AIBN) (w/w) as a chain initiator. The formation of BPE, PEUA and copolymers was confirmed by Fourier transform infrared (FT-IR) and 1H NMR spectroscopy. Water uptake, mechanical, thermal and optical properties of PEUA, PMMA and their copolymers have been also investigated. The impact fractured surface morphology of copolymers was observed using scanning electron microscope (SEM). The results showed that the increased miscibility, improved mechanical and physical properties of copolymer was influenced by the crosslink density. Dynamic mechanical analysis (DMA), thermogravimetric analysis (TGA), Haze and transparency of PEUA/MMAcopolymers were determined. The copolymer with 40 wt% MMA loading exhibited optimum mechanical and physical properties with respect to the other compositions.
Keywords:poly(ester-urethane-acrylate)/MMA copolymer;crosslinked density;transparency;mechanical properties;thermal properties
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