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Colloid and Polymer Science

Erschienen in:

27.03.2019 | Short Communication

Structural characteristics of mPEG-PDLLA and their effects on micelle stability

verfasst von: Bumchan Min, Minhyo Seo, Bong Oh Kim, Youngjoo Koh, Yilwoong Yi, Hyerim Kim

Erschienen in: Colloid and Polymer Science | Ausgabe 5/2019

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Abstract

The correlation between polymer microstructure of mPEG-PDLLA and secondary aggregation of its micelle was studied. Close examination of ¹H NMR spectra revealed that the methine moieties, -CH(CH₃)-, of mPEG-PDLLA polymer well represented its microstructure. To elucidate the physicochemical characteristics of various microstructures, we have developed an index, called L-ratio, to indicate the relative content of heterotactic component within the polymer. Storage stability of micelles from six polymers with different L-ratios (L-ratio ranging from 28 to 33%) was studied at 30 °C and 50 °C, and changes in average particle size were monitored to evaluate their secondary aggregation. We have found that polymers with high L-ratio takes longer time to secondary aggregation of polymeric micelles to occur. The findings should provide insightful guidance in the development of polymeric micelles.

Vorheriger Artikel Synthesis of conducting polymeric nanoparticles in the presence of a polymerizable surfactant and their electrorheological response

Nächster Artikel Solvent-free microwave-assisted synthesis and characterization of polybenzoxazine as a thermochromic material for smart coatings

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Titel: Structural characteristics of mPEG-PDLLA and their effects on micelle stability
verfasst von: Bumchan Min
Minhyo Seo
Bong Oh Kim
Youngjoo Koh
Yilwoong Yi
Hyerim Kim
Publikationsdatum: 27.03.2019
Verlag: Springer Berlin Heidelberg
Erschienen in: Colloid and Polymer Science / Ausgabe 5/2019
Print ISSN: 0303-402X
Elektronische ISSN: 1435-1536
DOI: https://doi.org/10.1007/s00396-019-04495-5

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