Prabhu, V.
, Mineart, K.
, Wei, G.
, Hedrick, J.
, , Y.
and Venkataraman, S.
(2020),
The Effect of Solvent Quality on Pathway-Dependent Solution-State Self-Assembly of an Amphiphilic Diblock Copolymer, Journal of Applied Physics, [online], https://doi.org/10.1063/1.5139230
(Accessed April 25, 2024)
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The Effect of Solvent Quality on Pathway-Dependent Solution-State Self-Assembly of an Amphiphilic Diblock Copolymer
Published
Author(s)
, , , James Hedrick, Yi Yan Yang, Shrinivas Venkataraman
Abstract
The cholesterol-functionalized polycarbonate-based diblock copolymer, PEG113-b-P(MTC-Chol)30, forms pathway-dependent nanostructures via dialysis-based solvent exchange. The initial organic solvent that dissolves or disperses the polymer dictates a self-assembly pathway. Depending upon the initial solvent, nanostructures of disk-like micelles, exhibiting asymmetric growth and hierarchical features are accessible from a single amphiphilic precursor. Dioxane and THF molecularly dissolves the block copolymer, but THF yields disks and dioxane stacked-disks. DMF and methanol display dispersed disks, then form stacked disk structure. The path-dependent morphology, correlated to solubility parameters, offers routes to tailor self-assemblies with limited sets of building blocks.Citation
Journal of Applied Physics
Volume
127
Pub Type
Journals
Download Paper
Keywords
amphiphilic block copolymers, side-chain liquid crystalline polymer, hierarchical self-assembly, nanostructures, aliphatic polycarbonates, ring-opening polymerization
Citation
Created March 23, 2020, Updated March 29, 2020