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Crystallization and morphology of a polymer blend based on linear PPDO and branched poly(p-dioxanone)–poly(lactic acid) block copolymer with immiscible blocks
The crystallization behaviour and morphology of a polymer blend based on branched poly(pdioxanone)–poly(lactic acid) block copolymer (PLA-b-LCB-PPDO) and linear PPDO with immiscible PPDO and PLA blocks has been investigated. Although the PPDO and PLA blocks are immiscible with each other, an interesting interpenetrating spherulite morphology, which always occurs in miscible blend...
http://www.polymer.cn//ss/chensichong/publicationsshow_12035.html |
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【ChemCatChem】Design of Raspberry‐Shaped Microcarriers with Adjustable Protrusions and Functional Groups for the Improvement of Lipase Immobilization and Biocatalysis: Environmentally Friendly Esterification of Oleic Acid for Biodiesel
Raspberry-shaped microparticles with adjustable protrusions and functional groups were synthesized and applied as carriers for the immobilization of lipase. The structural advantages of the raspberry-shaped microcarriers with immobilized lipase (RM-IL) are not only that the protrusions are constructed to play the role of a spacer arm, but the block structure enhances the bioactivity of lipas...
http://www.polymer.cn//ss/zhangqiuyu/publicationsshow_11798.html |
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One-pot synthesis of ternary alloy CuFePtnanoparticles anchored on reduced graphene oxide and their enhancedelectrocatalytic activity for both methanol and formic acid oxidation reactions.
By combining alloying and supporting approaches, ternary alloy CuFePt nanocatalysts anchored on the reduced graphene oxide (RGO) have been facilely synthesized by using NaBH4 as reductant in an ambient one-pot strategy. The as-prepared CuFePt/RGO hybrids were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), energy-dispersive spectrometry (EDS), and...
http://www.polymer.cn//ss/zhangxuan/publicationsshow_10793.html |
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Layer by layer deposition of polyethylene imine and bio-based polyphosphate on ammonium polyphosphate: a novel hybrid for simultaneously improving the flame retardancy and toughness of polylactic acid
In this study, a facile approach to fabricate a novel bio-based hybrid (BBH) with core/shell structure is presented by taking advantage of plant-derived resources. The BBH developed herein comprises of an inorganic core of ammonium polyphosphate (APP), covered with an organic shell that is constructed via layer-by-layer assembly of a novel bio-based polyelectrolyte (BPE) and polyethylene imine (...
http://www.polymer.cn//ss/zpfang/publicationsshow_9896.html |
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Fabrication of new metal phosphonates from tritopic trisphosphonic acid containing methyl groups and auxiliary ligands: syntheses, structures and gas adsorption properties
Hydrothermal reactions of benzene-1,3,5-triyltris(methylene)triphosphonic acid (H6L1) or (2,4,6-trimethylbenzene-1,3,5-triyl)tris(methylene)triphosphonic acid (H6L2) with metal sulfates, 4,4′-bipyridyl (4,4′-bipy), 2,2′-bipyridyl (2,2′-bipy), 1,10-phenanthroline (1,10-phen) and 1,2-di(4-pyridyl)ethylene (dpe), afforded eight new transition metal trisphosphonates, namely, [Cu2(H3L1)2(H2O)2][H2d...
http://www.polymer.cn//ss/zhaoxuebo/publicationsshow_9831.html |
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Novel graphitic carbon nitride nanosheets /sulfonated poly(ether ether ketone) acid-base hybrid membrane for vanadium redox flow battery
Hybrid membranes (SPEEK/g-C3N4) composed of sulfonated poly(ether ether ketone) (SPEEK) and graphitic carbon nitride (g-C3N4) are fabricated via a solution-casting method for vanadium redox flow
battery (VRB). The homogeneously dispersed g-C3N4 into SPEEK matrix is demonstrated by FT-IR and
SEM. The physicochemical properties such as swelling ratio, ion exchange capacity, proton conductivi...
http://www.polymer.cn//ss/hfshi/publicationsshow_9791.html |
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(RSC Adv.)Bio–based tetrafunctional crosslink agent from gallic acid and its enhanced soybean oil-based UV-cured coatings with high performance
The utilization of soybean oil-based UV coatings depends on the introduction of petroleum-based comonomers or crosslink agents. Thus, in this paper, a bio-based crosslink agent (GACA) for UV curable coatings was synthesized from gallic acid and its chemical structure was confirmed by FT IR, 1H NMR and 13C NMR. Crosslinked networks with high biobased content of more than 88% were obtained after c...
http://www.polymer.cn//ss/masongqi/publicationsshow_9702.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.cn//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.cn//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.cn//ss/zhangtianzhu/publicationsshow_8673.html |
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