{"title":"支化、多功能、高分子量聚乙二醇的新合成","authors":"S. Drioli, G. Bonora, M. Ballico","doi":"10.2174/1874095200801020017","DOIUrl":null,"url":null,"abstract":"A new set of branched high-molecular weight multifunctional poly(ethylene glycol) (MultiPEG) derivatives was obtained from smaller commercial diOH-PEGs (M.W. = 2000 and 6000 Da) which were selectively monoprotected, properly activated at the residual OH-functions and treated with 1,3-diamino-2-propanol and 2-amino-1,3-propandiol as polyfunctional linkers. They were purified by molecular exclusion chromatography or extensive dialysis and characterized by GPC and 1 H-NMR. The final polymeric derivatives are characterized by a higher number of terminal reacting moieties (up to 6 times) than that found in linear, commercial PEGs of same molecular size. This increased loading capability can be applied to improve their use as drug carriers and soluble synthetic supports.","PeriodicalId":23020,"journal":{"name":"The Open Organic Chemistry Journal","volume":"76 1","pages":"17-25"},"PeriodicalIF":0.0000,"publicationDate":"2008-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":"{\"title\":\"New Syntheses of Branched, Multifunctional High-Molecular Weight Poly(ethylene glycol)s or (MultiPEG)s\",\"authors\":\"S. Drioli, G. Bonora, M. Ballico\",\"doi\":\"10.2174/1874095200801020017\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A new set of branched high-molecular weight multifunctional poly(ethylene glycol) (MultiPEG) derivatives was obtained from smaller commercial diOH-PEGs (M.W. = 2000 and 6000 Da) which were selectively monoprotected, properly activated at the residual OH-functions and treated with 1,3-diamino-2-propanol and 2-amino-1,3-propandiol as polyfunctional linkers. They were purified by molecular exclusion chromatography or extensive dialysis and characterized by GPC and 1 H-NMR. The final polymeric derivatives are characterized by a higher number of terminal reacting moieties (up to 6 times) than that found in linear, commercial PEGs of same molecular size. This increased loading capability can be applied to improve their use as drug carriers and soluble synthetic supports.\",\"PeriodicalId\":23020,\"journal\":{\"name\":\"The Open Organic Chemistry Journal\",\"volume\":\"76 1\",\"pages\":\"17-25\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2008-03-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"6\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"The Open Organic Chemistry Journal\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.2174/1874095200801020017\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Open Organic Chemistry Journal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2174/1874095200801020017","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
New Syntheses of Branched, Multifunctional High-Molecular Weight Poly(ethylene glycol)s or (MultiPEG)s
A new set of branched high-molecular weight multifunctional poly(ethylene glycol) (MultiPEG) derivatives was obtained from smaller commercial diOH-PEGs (M.W. = 2000 and 6000 Da) which were selectively monoprotected, properly activated at the residual OH-functions and treated with 1,3-diamino-2-propanol and 2-amino-1,3-propandiol as polyfunctional linkers. They were purified by molecular exclusion chromatography or extensive dialysis and characterized by GPC and 1 H-NMR. The final polymeric derivatives are characterized by a higher number of terminal reacting moieties (up to 6 times) than that found in linear, commercial PEGs of same molecular size. This increased loading capability can be applied to improve their use as drug carriers and soluble synthetic supports.
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