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- W2392921000 abstract "Poly(D,L-lactide) macromonomer(PLA-HEMA) carrying the acrylate group was first prepared.Then,the graft copolymers with hydrophilic PVP-PHEMA backbone and hydrophobic PLA branched chain were synthesized by the free radical copolymerization of PLA-HEMA with(N-vinyl) pyrrolidone(NVP) in solution.The structure and properties of the graft copolymers were studied by FT-IR,()~1H-NMR,GPC,DSC and surface contact angle measurements.Results show that the graft copolymers are amorphous polymers.The feed molar fraction of NVP has significant influence on the properties of the copolymers.The molecular weight of the copolymers decreases and the value of the glass transition temperature(T_g) increases as the feed molar fraction of NVP increases.Compared to pure PLA,the graft copolymers show higher hydrophilicity due to the incorporation of hydrophilic PVP and PHEMA units in the copolymers." @default.
- W2392921000 created "2016-06-24" @default.
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- W2392921000 date "2007-01-01" @default.
- W2392921000 modified "2023-09-24" @default.
- W2392921000 title "Synthesis and Properties of a Graft Copolymer Derived from Poly(D,L-lactide) Macromonomer and N-Vinyl Pyrrolidone" @default.
- W2392921000 hasPublicationYear "2007" @default.
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