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Functionalization and hemocompatibility of a styrenic thermoplastic elastomer based on its epoxidized precursor  
Functionalization and hemocompatibility of a styrenic thermoplastic elastomer based on its epoxidized precursor
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关键词: biocompatibility  biomedical  applications  grafting  polyolefins  
资料大小: 1787k
所属学科: 高分子工程
来源: 来源网络
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Poly(ethylene glycol) monomethyl ether (mPEG) was introduced into a glycidyl methacrylate-modified styrenic thermoplasticelastomer graft copolymer via a ring-opening reaction with the epoxy group. The chemical compositions of the samples wereconfirmed by Fourier transform infrared spectroscopy, 1H-NMR spectroscopy, and gel permeation chromatography. X-ray photoelectronspectroscopy, atomic force microscopy, and water contact angle measurement were used to investigate the surface properties.The results show that the molecular weight of the mPEG monomer had a great effect on the surface properties of the modified samples.The platelet adhesion and protein adsorption of the samples modified with low-molecular-weight mPEG were reduced dramaticallyrelative to those of the virgin styrenic thermoplastic elastomer.
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