eCite Digital Repository
Estimation of copolymer/water interfacial tensions using pendant drop tensiometry
Citation
Jasinski, F and Alkhater, A and Thickett, SC and Brinkhuis, RH and Zetterlund, PB, Estimation of copolymer/water interfacial tensions using pendant drop tensiometry, Langmuir, 34, (23) pp. 6835-3843. ISSN 0743-7463 (2018) [Refereed Article]
Copyright Statement
Copyright © 2018 American Chemical Society
DOI: doi:10.1021/acs.langmuir.8b00554
Abstract
Copolymer/water interfacial tensions of statistical copolymers of styrene/n-butyl acrylate were estimated by pendant drop tensiometry using an "inverse" configuration according to which a drop of water was formed in toluene/copolymer solutions. The study first involved the precise measurement of copolymer solutions density using pycnometry. Subsequently, interfacial tensions of copolymer solutions against water were plotted as a function of copolymer concentration in toluene. Several methods were explored to fit the experimental data and obtain estimates of copolymer/water interfacial tensions at 100% copolymer concentration in toluene by extrapolation. The Belton−Evans extrapolation resulted in the best fit with the experimental data. When plotted as a function of the styrene composition of the copolymer, the interfacial tensions estimates followed an additivity relationship. This enabled estimation of the copolymer/water interfacial tensions directly from their respective homopolymer/water interfacial tensions values. These results are particularly useful for the prediction of composite particle morphology involving copolymerization of multiple monomers.
Item Details
Item Type: | Refereed Article |
---|---|
Keywords: | interfacial tension, pendant drop tensiometry, copolymers, surface free-energies, macromolecular systems, polymer, morphology, density, water, polyethylene, adsorption, particles, micelles |
Research Division: | Chemical Sciences |
Research Group: | Physical chemistry |
Research Field: | Colloid and surface chemistry |
Objective Division: | Expanding Knowledge |
Objective Group: | Expanding knowledge |
Objective Field: | Expanding knowledge in the chemical sciences |
UTAS Author: | Thickett, SC (Associate Professor Stuart Thickett) |
ID Code: | 127410 |
Year Published: | 2018 |
Funding Support: | Australian Research Council (LP140100119) |
Web of Science® Times Cited: | 3 |
Deposited By: | Chemistry |
Deposited On: | 2018-07-26 |
Last Modified: | 2019-03-06 |
Downloads: | 0 |
Repository Staff Only: item control page