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Biodegradable polymers from 5-hydroxylevulinic acid: 1. Synthesis and degradation of poly(5-hydroxylevulinic acid)
As an attempt to synthesize new biodegradable polymers from renewable cellulose resources, melt polycondensation of 5-hydroxylevulinic acid (5-HLA) was reported for the first time. The resulting product, poly(5-hydroxylevulinic acid) (PHLA), was synthesized and characterized with GPC, FTIR, 1H NMR and DSC. The in vitro degradation behaviors in phosphate-buffered saline (PBS) and in deionized water...
http://www.polymer.cn//ss/wulinbo/publicationsshow_938.html |
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甘草酸AGlycyrrhizic Acid
武汉鑫华远化工原料有限责任有限公司位于正在崛起中的华中名城武汉。是华中地区致力于精细化工，医药原料中间体的研究，开发，生产和销售于一体的大型综合性企业。
公司拥有自己的研发和生产基地，配备了标准先进的生产设备和高效精密的检测仪器并组建了严格科学的质量管理体系。集中华中地区不可估量的人才优势，公司与武汉市多家在国内外享誉盛名的高等院校建立了良好的合作关系，不断致力于技术创新，产品创新和管理创新，从而...
http://www.polymer.cn/trading/rubyxuan2/companydetail |
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Acrylamido Tertiary Butyl Sulfonic Acid
厦门长天企业有限公司位于福建省厦门市海沧新阳工业区，主要生产制造BOPA双向拉伸尼龙薄膜、2-A2MPS产品、BOPP胶粘带制品、离型纸系列产品，系集生产、销售、服务于一体的专业化公司。
公司设立BOPA实验室、2-A2MPS实验室、胶带、离型纸各种测试设备，保证产品质量符合各项规定标准，改进配方和工艺流程，以提高产品质量和竞争力。
公司一贯重视产品的质量，通过一系列制度和流程确保产品质量的优良和稳定，并于2003...
http://www.polymer.cn/trading/changtian/companydetail |
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Preparation and Properties of Poly(lactic acid-co-glycol terephthalic acid) Copolyester
关键字：Lactic acid； Glycol； Terephthalic acid； Copolyester； Thermal properties； Biodegradability.
A new biodegradable copolyester poly(lactic acid-co-glycol terephthalate) (PETA) was synthesized from three monomers of lactic acid, glycol and terephthalic acid with satisfactory properties. The resulting copolyesters, PETA, were characterized by IR...
http://www.polymer.cn/research/dis_info1939 |
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Study on Solubility of Copoly (L-lactic acid/ glycolic acid) by Direct Melt Polycondensation
关键字：Lactic acid/glycolic acid, Melt polymerization, Direct method, Solubility
A two steps direct copolymerisation process of L-lactic acid(L-LA)/glycilic acid(GA) was developed. The first step is to produce oligomer of L-LA/GA and then the oligomer was polymerized with binary catalyst tin chloride dihydrate/p-toluene...
http://www.polymer.cn/research/dis_info1345 |
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Preparation and Properties of Poly(lactic acid-co-glycol terephthalic acid) Copolyester
关键字：Lactic acid； Glycol； Terephthalic acid； Copolyester； Thermal properties； Biodegradability.
A new biodegradable copolyester poly(lactic acid-co-glycol terephthalate) (PETA) was synthesized from three monomers of lactic acid, glycol and terephthalic acid with satisfactory properties. The resulting copolyesters, PETA, were characterized by IR...
http://www.polymer.cn/research/dis_info1939 |
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Study on Solubility of Copoly (L-lactic acid/ glycolic acid) by Direct Melt Polycondensation
关键字：Lactic acid/glycolic acid, Melt polymerization, Direct method, Solubility
A two steps direct copolymerisation process of L-lactic acid(L-LA)/glycilic acid(GA) was developed. The first step is to produce oligomer of L-LA/GA and then the oligomer was polymerized with binary catalyst tin chloride dihydrate/p-toluene...
http://www.polymer.cn/research/dis_info1345 |
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Investigation of interactions in 4-aminosalicylic acid/polysaccharide in
Wide angle X-ray diffraction patterns, differential scanning calorimetry, UV–vis spectra and steady-state fluorescence spectroscopy were used to examine the interactions of konjac glucomannan (KGM) and 4-aminosalicylic acid (4-ASA) in aqueous solutions. The results showed that there exist hydrogen bonds
between 4-ASA and KGM, and the presence of KGM can cause the fluorescence quench in 4-AS...
http://www.polymer.cn//ss/liaozhengfu/publicationsshow_2623.html |
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Thermal properties of Copoly (L-lactic acid/ glycolic acid)
关键字：Lactic acid/glycol d, Melt polymerization,Direct method,Thermal properties
A two steps direct copolymerisation process of L-lactic acid(L-LA)/glycilic acid(GA) was developed. Thefirst ste is to produce oligomer of L-LA/GA and then the oligomer was polymerized with binary catalyst tinlg theization of polymer.pchlor...
http://www.polymer.cn/research/dis_info1173 |
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Thermal properties of Copoly (L-lactic acid/ glycolic acid)
关键字：Lactic acid/glycol d, Melt polymerization,Direct method,Thermal properties
A two steps direct copolymerisation process of L-lactic acid(L-LA)/glycilic acid(GA) was developed. Thefirst ste is to produce oligomer of L-LA/GA and then the oligomer was polymerized with binary catalyst tinlg theization of polymer.pchlor...
http://www.polymer.cn/research/dis_info1173 |
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