Amphiphilic block copolymer micelles in selective solvents: The effect of solvent selectivity on micelle formation

Kumar L, Horechyy A, Bittrich E, Nandan B, Uhlmann P, Fery A (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Polymers MDPI

Book Volume: 11

Article Number: 1882

Journal Issue: 11

DOI: 10.3390/polym11111882

Abstract

We investigated the micellar behavior of a series of asymmetric polystyrene-block-poly (4-vinylpyridine) (PS-b-P4VP) block copolymers in different P4VP-selective alcoholic solvents. The micellar behavior was further correlated with the spectroscopic ellipsometry results obtained on swelling of PS and P4VP polymer films in the corresponding solvent vapors. The time-resolved (in situ) dynamic light scattering (DLS) measurements, in combination with (ex situ) electron microscopy imaging, revealed information about the aggregation state of PS-b-P4VP BCP in different alcohols and the effect of heat treatment. The ellipsometry measurements allowed us to estimate the difference in solvent selectivity toward PS/P4VP pair. Both DLS and ellipsometric studies suggested that less polar alcohols (i.e., 1-propanol, 1-butanol, and 1-pentanol) are likely to be close to each other in terms of their selectivity toward PS/P4VP pair, whereas more polar ethanol and methanol show the highest and the lowest affinity toward P4VP, respectively.

Involved external institutions

Leibniz-Institut für Polymerforschung Dresden e. V. DE Germany (DE) Indian Institute of Technology (IIT), Delhi IN India (IN)

How to cite

APA:

Kumar, L., Horechyy, A., Bittrich, E., Nandan, B., Uhlmann, P., & Fery, A. (2019). Amphiphilic block copolymer micelles in selective solvents: The effect of solvent selectivity on micelle formation. Polymers, 11(11). https://doi.org/10.3390/polym11111882

MLA:

Kumar, Labeesh, et al. "Amphiphilic block copolymer micelles in selective solvents: The effect of solvent selectivity on micelle formation." Polymers 11.11 (2019).

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