Abstract
Microcapsules with triallylamine-containing core surrounded by polyelectrolyte shell of controlled thickness were prepared via layer-bylayer assembly technology. First, isocyanate end-capped polyurethane was synthesized through the reaction of isophorone diisocyanate and poly(1,4- butylene adipate). Then, polyurea microcapsules containing triallylamine were prepared by the interfacial polymerization with branched polyethylenimine (PEI) as the water-phase macro-monomer and the prepared isocyanate end-capped polyurethane as the oil-phase macromonomer. Finally, stable weak polyelectrolyte microcapsules were prepared by assembly of poly(acrylic acid)(PAA) and branehed PEI to build up polyelectrolyte multi-layers, and this was followed by glutaraldehyde mediated cross-linking to further increase the mechanical strength of the final capsules. Results showed that the obtained microcapsules were narrowly distributed in size and the mean diameter could be adjusted. This kind of capsule might be used to construct pressure-sensitive materials.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
