Document Detail


Direct, controlled synthesis of the nonimmunogenic, hydrophilic polymer, poly(N-(2-hydroxypropyl)methacrylamide) via RAFT in aqueous media.
MedLine Citation:
PMID:  16004419     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Poly(N-(2-hydroxypropyl)methacrylamide) (PHPMA) is a nonimmunogenic, neutral-hydrophilic polymer currently employed in the delivery of anticancer drugs. Herein, we report conditions that facilitate the direct, controlled RAFT polymerization of HPMA in aqueous media. We demonstrate that the use of 4-cyanopentanoic acid dithiobenzoate and 4,4'-azobis(4-cyanopentanoic acid) as the chain transfer agent (CTA) and initiating species, respectively, in the presence of an acetic acid buffer solution at 70 degrees C is a suitable condition leading to controlled polymerization. The "living" nature of these polymerizations is demonstrated via chain-extension of an HPMA macroCTA to yield the corresponding poly(HPMA-b-HPMA) "homopolymer".
Authors:
Charles W Scales; Yulia A Vasilieva; Anthony J Convertine; Andrew B Lowe; Charles L McCormick
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Biomacromolecules     Volume:  6     ISSN:  1525-7797     ISO Abbreviation:  Biomacromolecules     Publication Date:    2005 Jul-Aug
Date Detail:
Created Date:  2005-07-11     Completed Date:  2005-11-14     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  100892849     Medline TA:  Biomacromolecules     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1846-50     Citation Subset:  IM    
Affiliation:
Department of Polymer Science, The University of Southern Mississippi, Hattiesburg, Mississippi 39406, USA.
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MeSH Terms
Descriptor/Qualifier:
Magnetic Resonance Spectroscopy
Polymers / chemistry*
Polymethacrylic Acids / chemistry*
Scattering, Radiation
Water / chemistry
Chemical
Reg. No./Substance:
0/Polymers; 0/Polymethacrylic Acids; 40704-75-4/Duxon; 7732-18-5/Water

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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