Abstract
A novel approach to incorporate different polymers into micro- and nanocapsules fabricated by means of layer-by-layer (LbL) adsorption of oppositely charged polyelectrolytes on colloidal particles is proposed. This method comprises two stages. At first, the polymers, which are supposed to be incorporated, precipitate on the surface of colloidal particles. This can be done either by complexation of polyelectrolytes with multivalent ions or by adding miscible non-solvents. Then stable LbL assembled polyelectrolyte shells are formed. After core decomposition the inner polymer molecules are released from the wall but captured by the outer shell and floating in the capsule interior. The possibilities to encapsulate a wide class of charged and non-charged polymers were demonstrated on such examples as sodium poly(styrene sulfonate) as a polyanion, poly(allylamine hydrochloride) as a polycation and Dextrane as non-charged water soluble polymer.
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 callMore From: Colloids and Surfaces A: Physicochemical and Engineering Aspects
Disclaimer: 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.
