POLY 69 |
| The formation of novel micellar nanostructures in aqueous media by self association of ABC water-soluble terpolymers has attracted considerable interest in recent years due to expectations for novel potential applications. The morphology of self-assemblies in solution is governed by several factors such as copolymer architecture (topology) relative block lengths, interaction parameters among the different blocks and the solvent, temperature etc. All these factors can be tuned by controlled synthetic methods and adjusting environmental conditions and therefore the desired nano-morphology could be designed. In this work we demonstrate the behavior of a double hydrophilic stimuli responsive ABC terpolymer constituted of poly(2-vinyl pyridine), poly(acrylic acid) hydrophilic and poly(n-butyl methacrylate) hydrophobic segments covalently bonded in linear mode (P2VP-PAA-PnBMA). Due to the amphoteric character of the hydrophilic blocks, this polymer exhibits a rich polymorphism and multifunctionality in aqueous media. Moreover, preliminary results dealing with the behavior of a novel star-shaped multisegmental PSn(P2VP-b-PAA)n double hydrophilic block terpolymer comprising equal number of short PS arms and P2VP-b-PAA diblock arms will be presented. This polymer is not directly soluble in water and its study was conducted in H2O/DMF (1:1) mixtures. |
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Multicompartment Micelles: Higher Order Self-assembly of Block Copolymers
1:30 PM-5:00 PM, Sunday, 10 September 2006 San Francisco Marriott -- Salon B2, Oral
Division of Polymer Chemistry |