期刊
MACROMOLECULAR CHEMISTRY AND PHYSICS
卷 213, 期 19, 页码 2012-2018出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/macp.201200368
关键词
copolymerization; macromonomers; nanoparticles; surfactants
The controlled synthesis of degradable nanoparticles (NPs) made from a brush copolymer constituted of a 2-hydroxyethyl methacrylate (HEMA) backbone with PEG and PLA pendants both tunable in length and composition has been developed. Using ring-opening polymerization (ROP) of L,Llactide, vinyl end-functionalized PLA macromonomers were produced and then copolymerized with HEMAPEG macromonomers. Narrow dispersed PEGylated NPs with size down to 25 nm with different PEGylation degree and PEG chain lengths were obtained. Surfactant-free MSSEP in the absence of any solvent was implemented to produce NPs suitable for biomedical applications. The colloidal stability in isotonic solutions of these NPs was investigated and the corresponding critical coagulation concentration (CCC) of the NPs was determined.
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