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Title: Supramolecular self-assembly systems based on cyclodextrins and copolymers of different chain architectures
Authors: CHEN BIN
Keywords: Supramolecular self-assembly, host-guest interactions, inclusion complexes, hydrogels, micelles.
Issue Date: 28-Aug-2007
Citation: CHEN BIN (2007-08-28). Supramolecular self-assembly systems based on cyclodextrins and copolymers of different chain architectures. ScholarBank@NUS Repository.
Abstract: The research was focused on host-guest interactions involving cyclodextrins (I?-CD, I?-CD, and I?-CD) and copolymers of different chain architectures such as linear triblock, star-shaped, or dendritic copolymers. The first supramolecular self-assembly system is the inclusion complexes (ICs) formed between biodegradable poly(I?-caprolactone)a??poly(tetrahydrofuran)a??poly(I?-caprolactone) (PCLa??PTHFa??PCL) triblock copolymers and I?-, I?-, and I?-CDs in a different mode. The second supramolecular system was formed between CDs and multi-arm star poly(ethylene glycols) (PEG) with the ends capped by pyrene. The complexation between I?-CD and two pyrene ends acts as crosslinking and results in the gelation of the copolymers. Finally, micelle-like supramolecular structures were constructed by polyamidoamine (PAMAM) dendrimers with I?-CD ends and linear PEG with adamantane at one end. The PAMAM-I?-CD dendrimers form complexes through interactions between I?-CD cavities and adamamtane, forming a PEG shell similar to that in the micelles of am amphiphilic block copolymer.
Appears in Collections:Ph.D Theses (Open)

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