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Published in: Polymer Bulletin 4/2014

01-04-2014 | Original Paper

Synthesis and characterization of chitosan droplet particles by ionic gelation and phase coacervation

Authors: Sudipta Chatterjee, Fabien Salaün, Christine Campagne, Suzy Vaupre, Alexandre Beirão, Ahmida El-Achari

Published in: Polymer Bulletin | Issue 4/2014

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Abstract

The present study focused on formation of chitosan (CS) droplets particles/microcapsules by ionic gelation method with sodium dodecylsulfate (SDS) for encapsulating linseed oil as active substance. Chitosan droplet particles with four alternate layers of CS and SDS were developed from oil in water emulsion using SDS as an anionic emulsifier. The process was optimized by zeta potential measurements to avoid overcharging of particles by excess addition of CS. The drying process promoted coalescence of CS droplet particles to form a functional coating and to protect the core substance against influence of environmental conditions. The functional coating formed by the particles was characterized by scanning electron microscopy, wetting measurements, and atomic force microscopy and surface roughness. Atomic force microscopy and surface roughness analyses indicated that smooth surface with more hydrophobic groups on the surface of functional coating was obtained after CS addition and it was due to film forming ability of CS chains in the system.

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Metadata
Title
Synthesis and characterization of chitosan droplet particles by ionic gelation and phase coacervation
Authors
Sudipta Chatterjee
Fabien Salaün
Christine Campagne
Suzy Vaupre
Alexandre Beirão
Ahmida El-Achari
Publication date
01-04-2014
Publisher
Springer Berlin Heidelberg
Published in
Polymer Bulletin / Issue 4/2014
Print ISSN: 0170-0839
Electronic ISSN: 1436-2449
DOI
https://doi.org/10.1007/s00289-014-1107-4

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