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Controlling the Morphology of Polyurea Microcapsules Using Microfluidics

Polenz, Ingmar and Datta, Sujit S. and Weitz, David A. (2014) Controlling the Morphology of Polyurea Microcapsules Using Microfluidics. Langmuir, 30 (44). pp. 13405-13410. ISSN 0743-7463. http://resolver.caltech.edu/CaltechAUTHORS:20141218-104757650

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Abstract

We use microfluidics to continuously produce monodisperse polyurea microcapsules (PUMCs) having either aqueous or nonaqueous cores. The microcapsule shells are formed by the reaction between an isocyanate, dissolved in oil, and an amine, dissolved in water, at the surface of oil-in-water or water-in-oil drops immediately as they are formed. Different microcapsule morphologies can be generated using our approach. The thickness of the microcapsule shell increases with an increase in the amine solubility in the oil; this finding provides a simple mechanism by which the PUMC shell thickness can be controlled.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1021/la503234z DOIArticle
http://pubs.acs.org/doi/abs/10.1021/la503234zPublisherArticle
http://pubs.acs.org/doi/suppl/10.1021/la503234zPublisherSupporting Information
ORCID:
AuthorORCID
Datta, Sujit S.0000-0003-2400-1561
Additional Information:© 2014 American Chemical Society. Received: August 19, 2014; Revised: October 15, 2014; Published: October 16, 2014. We thank Christian Holtze and Regina Klein for discussion. S.S.D. acknowledges funding from ConocoPhillips. This work was supported by the BASF Advanced Research Initiative @ Harvard University, the National Science Foundation (DMR-1310266), and the Harvard MRSEC (DMR-0820484).
Funders:
Funding AgencyGrant Number
ConocoPhillipsUNSPECIFIED
Harvard UniversityUNSPECIFIED
NSFDMR-1310266
NSFDMR-0820484
BASFUNSPECIFIED
Record Number:CaltechAUTHORS:20141218-104757650
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20141218-104757650
Official Citation:Controlling the Morphology of Polyurea Microcapsules Using Microfluidics Ingmar Polenz, Sujit S. Datta, and David A. Weitz Langmuir 2014 30 (44), 13405-13410
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:53017
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:18 Dec 2014 19:50
Last Modified:20 Feb 2019 17:29

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