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Issue 9, 2014
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UV-induced disruption of microcapsules with azobenzene groups

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Abstract

UV responsive microcapsules containing azobenzene were fabricated by sequential deposition of oppositely charged poly[1-[4-(3-carboxy-4-hydroxyphenylazo)benzenesulfonamido]-1,2-ethanediyl, sodium salt] (PAZO) and poly(diallyldimethyl ammonium) chloride (PDADMAC). As found in this work, combination of PDADMAC and PAZO led to aggregation of PAZO segments in the progress of polymer deposition, which facilitated the large extent of J aggregates when the capsules were exposed to UV light. J aggregate assemblies destroyed the integrity of capsule shell formations, demonstrating capsule swelling and further breakage. This UV induced capsule breakage offered a new way to modulate the release of encapsulated cargos.

Graphical abstract: UV-induced disruption of microcapsules with azobenzene groups

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Publication details

The article was received on 14 Jun 2013, accepted on 24 Jul 2013 and first published on 04 Oct 2013


Article type: Paper
DOI: 10.1039/C3SM51648B
Soft Matter, 2014,10, 1384-1391

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    UV-induced disruption of microcapsules with azobenzene groups

    Q. Yi and G. B. Sukhorukov, Soft Matter, 2014, 10, 1384
    DOI: 10.1039/C3SM51648B

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