Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 33, Issue 2, Pages 127-132Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201100645
Keywords
amphiphilic homopolymers; fractals; glycopolymers; lectin binding; pH responsive aggregation
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Funding
- CSIR India [01(2366)/10/EMR-II]
- CSIR
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The first example of amphiphilic glyco-homopolymers is reported and their aggregation properties as a function of solution pH are studied. Two structurally similar polymers with different hydrophobicity (C8 and C6 alkyl chains) are examined. Both polymers form micelle-type aggregates in aqueous solution. The size and micro-environment of the aggregates are found to be strongly dependent on solution pH because of the state of protonation of the tertiary amine group. At acidic pH, swollen multi-micellar aggregates are formed, presumably because of the electrostatic repulsion among the ammonium ions. At basic pH more compact particles are found, which further co-assemble to generate either garland type (C8) or fractal-aggregates (C6).
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