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【Applied Surface Science】Surface modification of poly(styrene-b-(ethylene- co-butylene)-b-styrene) elastomer via photo-initiated graft polymerization of poly(ethylene glycol)
Abstract:
Poly(styrene-b-(ethylene-co-butylene)-b-styrene) (SEBS) copolymer biomedical elastomer was covalently grafted with poly(ethylene glycol) methyl ether methacrylate (PEGMA) via a photo-initiated graft polymerization technique. The surface graft polymerization of SEBS with PEGMA was verified by ATR–FTIR and XPS. Effect of graft polymerization parameters, i.e., monomer concentration, U...
http://www.polymer.cnt//ss/luanshifang/publicationsshow_9339.html |
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Biobased poly(butylene 2,5-furandicarboxylate) and poly(butylene adipate-co-butylene 2,5-furandicarboxylate)s: From synthesis using highly purified 2,5-furandicarboxylic acid to thermo-mechanical properties
To synthesize high quality (co)polyesters derived from 2,5-furandicarboxylic acid (FA), an acetic acid refluxing/pH-swing method was proposed to purify FA. 2-Carboxyl furfural and other impurities were removed completely from FA with this method. Using highly purified FA, biobased polyester poly(butylene furnadicarboxylate) (PBF) and aliphatic-aromatic copolyesters poly(butylene adipat...
http://www.polymer.cnt//ss/wulinbo/publicationsshow_9127.html |
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Poly(L?lactic acid)-block-poly(butylene succinate-co-butylene adipate) Multiblock Copolymers: From Synthesis to Thermo-Mechanical Properties
Multiblock copolymers poly(L-lactic acid)-block-poly(butylene succinate-co-butylene adipate)s (abbr. P(LLA-mb-
BSA)s) are synthesized via a polycondensation/chain extension/coupling method using binary chain extenders. A poly(L-lactic acid) (PLLA) prepolymer synthesized via direct melt polycondensation of L-lactic acid is rapidly chain extended with a bis (2-oxazoline) to form hydroxyl t...
http://www.polymer.cnt//ss/wulinbo/publicationsshow_9125.html |
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Poly(ethylene glycol)-cross linked Poly(methyl vinyl ether-co-maleic acid) hydrogels for Three-Dimensional Human Ovarian Cancer Cell Culture
In this work, three kinds of poly(ethylene glycol)-cross linked poly(methyl vinyl ether-co-maleic acid) hydrogels, Gel-1, Gel-2, and Gel-3 with different elastic modulus of 105,100 Pa, 12,020 Pa, and 2191 Pa were designed for simulating respectively the mechanical strength of stiffer metastasis bone sites, cancerous soft tissue, and BME or collagen, and were evaluated in three-dimen...
http://www.polymer.cnt//ss/zhangtianzhu/publicationsshow_8673.html |
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A novel hierarchically structured and highly hydrophilic poly(vinyl alcohol-co-ethylene)/poly(ethylene terephthalate) nanoporous membrane for lithium-ion battery separator
A novel hierarchically structured and highly hydrophilic poly(vinyl alcohol-co-ethylene)/poly(ethylene
terephthalate) nanoporous separator (referred to NFs/PET/NFs) composed of a poly(ethylene terephthalate)
(PET) nonwoven sandwiched between two interconnected poly(vinyl alcohol-co-ethylene)
(PVA-co-PE) nanofibrous membranes is successfully developed for lithium-ion battery. Systematical investiga...
http://www.polymer.cnt//ss/wangdongjiaoshou/publicationsshow_8151.html |
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[Polym. Chem.] A branching point thermo and pH dual-responsive hyperbranched polymer based on poly(N-vinylcaprolactam) and poly(N,N-diethyl aminoethyl methacrylate)
We report the design and synthesis of a branching point stimuli-responsive hyperbranched polymer based on poly(N-vinylcaprolactam) and poly(N,N- diethylaminoethyl methacrylate) through combined “A2 + BxC” (x > 2) double monomer polymerization and parallel click reaction. The results of ultraviolet-visible spectrophotometry and dynamic light scattering (DLS) indicated that the r...
http://www.polymer.cnt//ss/tianwei/publicationsshow_7918.html |
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[Polym. Chem.] Miktoarm star polymers with poly(N-isopropylacrylamide) or poly(oligo(ethylene glycol) methacrylate) as building blocks: synthesis and comparison of thermally-responsive behaviors
We synthesized two thermally-responsive miktoarm star polymers in which poly(Nisopropylacrylamide) (PNIPAM) or poly(oligo(ethylene glycol) methacrylate) (POEGMA) served as the thermosensitive building blocks.The obtained miktoarm star polymers were comprised of a b-CD core, a PEG arm and about six PNIPAM or POEGMA arms. Furthermore, the thermally-responsive behaviors of the mik...
http://www.polymer.cnt//ss/tianwei/publicationsshow_7915.html |
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Temperature dependent morphological evolution and the formation mechanism of anisotropic nano-aggregates from a crystalline-coil block copolymer of poly(p-dioxanone) and poly(ethylene glycol)
The morphological evolution and phase transition of a branched crystalline-coil multi-block copolymer, poly(p-dioxanone)-block-poly(ethylene glycol) (PPDOstar-b-PEG), in aqueous solution under heating and cooling were investigated. The changes in size and morphology of the nano-aggregates were monitored by dynamic light scattering (DLS), transmission electron microscopy (TEM) and atomic force mi...
http://www.polymer.cnt//ss/wugang/publicationsshow_7836.html |
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Unique Multifunctional Thermally-Induced Shape Memory Poly(p-dioxanone)-Poly(tetramethylene oxide)glycol Multiblock Copolymers Based on the Synergistic Effect of Two Segments
Biodegradable and biocompatible poly(p-dioxanone)-poly(tetramethylene oxide)glycol (PPDO-PTMEG) multiblock copolymers with excellent shape memory effect and mechanical properties were developed by coupling PPDO-diol and PTMEG-diol with 1,6-hexamethylene diisocyanate (HDI). The influences of chain structure, microphase separating morphology on shape memory effect, and biocompatibility were invest...
http://www.polymer.cnt//ss/wugang/publicationsshow_7833.html |
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Thermo- and pH-responsive Behaviors of Aqueous Poly(acrylic acid)/Poly(4-vinylpyridine) Complex Material Characterized by ATR-FTIR and UV-Vis Spectroscopy
A novel thermo- and pH- responsive poly(acrylic acid) (PAA)/poly(4-vinylpyridine) (P4VP) aqueous material with an upper critical solution temperature (UCST) was developed in this study. It was found that the formation of the aqueous complex material was caused by the deprotonation of pyridinium groups of P4VP molecules and consequent hydrogen bonding formation between pyridine and carboxyl...
http://www.polymer.cnt//ss/cenglxl/publicationsshow_7523.html |
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