Morphology study of 2-ethylhexyl acrylate/cellulose acetate propionate microcapsules prepared via solvent evaporation technique

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F17%3APU124426" target="_blank" >RIV/00216305:26310/17:PU124426 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Morphology study of 2-ethylhexyl acrylate/cellulose acetate propionate microcapsules prepared via solvent evaporation technique

Original language description

Novel 2-ethylhexyl acrylate (2-EHA)/cellulose acetate propionate (CAP) microcapsules with mononuclear core-shell morphology are potentially an interesting model system for polymerization inside microcapsules. Microencapsulation was performed by solvent evaporation technique from dichloromethane solution dispersed in poly(vinyl alcohol) solution. Microcapsule morphology, which evolved from partially raspberry-like to a bowl like due to premature shell formation and subsequent solvent evaporation, was captured by microscopy imaging techniques. Thus it has been concluded that kinetics of CAP shell formation play a crucial role in preparation of 2 EHA/CAP microcapsules. Moreover, microcapsules were ruptured in compression under microscope in order to evaluate fracture type. Ductile fracture of microcapsule shell was observed. Shell thickness of 0.3 μm was estimated by scanning electron microscopy. Even though bowl-like morphology of microcapsules was not favorable for polymerization inside microcapsules, some microcapsules gained irregular crumpled shape which facilitated formation of microporous hollow particles after drying the microcapsule suspension. These microporous particles may promise further research potential for development of particles with controlled release profile.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10404 - Polymer science

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Studentská odborná konference Chemie je život 2017 Sborník konferenčních příspěvků

ISBN

978-80-214-5489-7

ISSN

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e-ISSN

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Number of pages

224

Pages from-to

174-184

Publisher name

Neuveden

Place of publication

Neuveden

Event location

Brno

Event date

Mar 23, 2017

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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