Kalva, Nagendra and Aswal, Vinod and Ambade, Ashutosh (2014) Effect of the branching pattern of hydrophobic dendrons on the core structure of linear-dendritic copolymer micelles. Macromolecular Chemistry Physics, 215. ISSN 1521-3935

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Abstract

Hydrophobic dendrons based on different branching patterns, viz. 3,5-di- and 3,4,5-trisubstituted phenyl rings, consist of the same backbone but exhibit different size, shape and hydrophobic density. These dendrons are attached to poly(ethylene glycol) and core properties of the copolymer micelles are investigated in THF/water mixtures by neutron scattering. Two polymers with intermediate hydrophobicity are studied further with variation in solvent composition and temperature. Aggregation numbers for 3,4,5-based dendron copolymers were lower with more THF molecules of solvation compared to 3,5-based dendron copolymer, the difference being greater at higher generation due to different molecular shapes. Micellar core size increased in small steps with dendron size so that dye encapsulation is tuned.

Item Type: Article
Uncontrolled Keywords: diblock copolymers;linear-dendritic copolymers;micelles;neutron scattering;structure–property relations
Subjects: Polymer Science and Engineering
Divisions: UNSPECIFIED
Depositing User: Nagendra Nagendra kalva
Date Deposited: 31 Jul 2014 11:54
Last Modified: 27 Oct 2014 07:08
URI: http://ncl.csircentral.net/id/eprint/1513

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