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Elaboration of corona functionalized regular unimolecular hyperbranched polystyrene nanoparticles
Author(s) -
Schappacher Michel,
Muchtar Zainuddin,
Bernard Julien,
Deffieux Alain
Publication year - 2002
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200207)183:1<23::aid-masy23>3.0.co;2-w
Subject(s) - polystyrene , acetal , polymer chemistry , surface modification , materials science , polymer , polymerization , styrene , radical polymerization , chemistry , organic chemistry , copolymer , composite material
Abstract Functional arborescent graft polystyrenes prepared by the “graft‐on‐graft” technique, involving the iterative grafting of end functional polymer chains onto reactive polymer backbones were synthesized. The zero‐generation comb polymers and then the first generation hyperbranched structures were obtained by the coupling reaction of living α‐acetal polystyryllithium onto linear or comb chains of poly(chloroethyl vinyl ether) (PCEVE) of controlled D̄P̄ n and structure. Both the PS grafts and the PCEVE reactive backbones were synthesized individually by living polymerization techniques. Initiation of styrene polymerization from acetal functionalized lithium derivatives yield the ω‐functionalization of all external polystyrene branches. Derivatization of these acetal branch termini allowed the generation of aldehyde, hydroxyl and carboxyl groups as well as the introduction of functional organic molecules at the periphery of the nanoparticles.