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“S” shaped organotin(IV) carboxylates based on amide carboxylic acids: Syntheses, crystal structures and antitumor activities
关键字：Organotin carboxylate,Amide carboxylic acid,Self-assembly,Supramolecular structure, Antitumor activity
Three organotin carboxylates based on amide carboxylic acids: (Ph3Sn)2(L1) (1) (L1
? 3,30-(1,3,5,7-
tetraoxo-5,7-dihydropyrrolo[3,4-f]isoindole-2,6(1H,3H)-diyl)dipropionic acid), (Ph3Sn)2(L2)$C7H8 (2)
(L2 ? 3,30-(1,3,6,8-tetraoxo-1,3,6,8-tetrahydrobenzo [lmn][3,8]phenanthroline-2,7-diyl)dipropionic acid),
[(Ph3Sn)(CH3CH2O)]2(L3) (3) (L3 ? 2,20-(1,3,5,7-tetraoxo-5,7-dihydropyrrolo[3,4...
http://www.polymer.cn/research/sy_info19487 |
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Poly(L?lactic acid)-block-poly(butylene succinate-co-butylene adipate) Multiblock Copolymers: From Synthesis to Thermo-Mechanical Properties
关键字：biodegradable, multi-block copolymer, chain extension, chain coupling
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/research/sy_info19423 |
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Preparation and characterization of PSSA/PVA catalytic membrane for biodiesel production
关键字：Biodiesel Poly(vinyl alcohol) (PVA) Poly(styrene sulfonic acid) (PSSA) Catalytic membrane Esteri?cation
Poly(styrene sulfonic acid) (PSSA)/Poly(vinyl alcohol) (PVA) blend membranes prepared by the solution casting were employed as heterogeneous acid catalysts for biodiesel production from acidic oil obtained from waste cooking oil (WCO). The membranes were annealed at different temperature in order to enhance their stability. The structure and properties of the membranes were investigated by means o...
http://www.polymer.cn/research/sy_info15100 |
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Investigation of pH responsive nanogels with semi-interpenetrating polymer network structure
关键字：nanogels; Semi-interpenetrating polymer network (semi-IPN); pH responsiveness; poly(acrylic acid);poly(N-isopropylacrylamide)
The nanogels with semi-interpenetrating polymer network (semi-IPN) structure based on cross-linked poly(N-isopropylacrylamide) (PNIPAM) and linear poly(acrylic acid) (PAA) were fabricated by one-step precipitation polymerization technique. The chemical composition&...
http://www.polymer.cn/research/dis_info14019 |
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Thermal properties of cellulose acetate butyrate graft poly(lactic acid) synthesized by ring-opening polymerization of L-lactide
关键字：cellulose acetate butyrate; lactide; graft copolymerization; melt point
A series of cellulose acetate butyrate-graft-polylactide (CAB-g-PLA) copolymer were synthesized by ring-opening polymerization at 150°C using stannous octoate as catalyst. Structure and thermal properties of CAB-g-PLAs were investigated. FTIR spectra&nbs...
http://www.polymer.cn/research/dis_info13939 |
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稀土稳定剂对碳酸钙填充PVC-U 性能的影响
关键字：Poly(vinyl chloride), rare-earth stabilizer, lanolin fatty acid
在PVC-U 中加入碳酸钙(CaCO3)可降低材料的成本，但塑料与填料极性差异大，相容性不好，影响材料的性能。
http://www.polymer.cn/research/dis_info13660 |
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TiO2 与聚乳酸基体相互作用的研究
关键字：Poly(lactic acid)(PLLA), TiO2, interaction, Ultraviolet irradiation
聚乳酸（PLLA）分子链中的C-O 键、C-C 键和C-H 键键能分别为344kJ/mol、347 kJ/mol和462 kJ/mol，户外紫外线波长200nm 和300nm 的光能量分别为598 kJ/mol 和397 kJ/mol，当PLLA 材料户外使用时，极易受到紫外线的破坏，进而影响材料使用性能。
http://www.polymer.cn/research/dis_info13566 |
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聚乳酸/聚乙二醇体系结晶学研究
关键字：Polylactic acid, Poly(ethylene glycol), Crystallization, Phase separation
聚乙二醇（PEG）能够改善聚乳酸（PLA）的力学性能，提高其结晶能力,是目前PLA改性中良好的共混组分，而且由于两者的生物相容性，在医学上具有应用前景。
http://www.polymer.cn/research/dis_info13401 |
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聚甲基丙烯酰亚胺泡沫材料的制备及性能研究
关键字：Polymethacrylimide, Closed-cell methacrylic acid acrylonitrile
聚甲基丙烯酰亚胺（PMI）泡沫于上世纪60 年代首先由Degusa 公司开发成功，因其具有优异的综合性能，在相同密度的条件下，较其他泡沫塑料有更高的强度、模量，同时兼具优异的耐热性能和抗蠕变性能，现已作为夹心材料在航空、航天、铁路机车、船舶、风力发电等高科技领域得到广泛应用。
http://www.polymer.cn/research/dis_info13362 |
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The Thermal Behavior and Flame Retardancy of a Novel Phosphorus-Containing Low Melting Temperature Copolyester
关键字：flame retardancy; thermal behavior; low melting temperature; copolyester; 3-(hydroxyphenylphosphinyl)propionic acid
Poly (ethylene terephthalate) (PET) fiber has been the synthetic fiber with the biggest output and thewidest uses.
http://www.polymer.cn/research/dis_info12486 |
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