Side Chain Influence on the Mechanical Properties and Water Uptake of Confined Comb-Shaped Cationic Polymer Thin Films

Douglas I. Kushner, Liang Zhu, Ahmet Kusoglu, Michael Anthony Hickner

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Water uptake is measured for ≈100 nm and ≈60 μm thick quaternized comb-shaped poly(2,6-dimethyl-1,4-phenylene oxide) (QA-PPO) polymers with 0, 6, 10, and 16 carbon alkyl side chains to probe the influence of thin film confinement. The thin film modulus is measured to probe the effect of side chain length on the thin film modulus and the ensuing water uptake. Increasing the alkyl side chain length results in increased modulus, decreased swelling strain, and decreased water uptake due to the lengthening of the n-alkyl side chains. Confinement effects on the comb-shaped QA-PPO water uptake are expressed through increased water uptake in the thin film compared to the bulk membrane. The thin films also exhibit a different water sorption mechanism consistent with two types of water compared to the bulk membranes that exhibit a single type of water sorption. (Figure presented.).

Original languageEnglish (US)
Pages (from-to)2442-2451
Number of pages10
JournalMacromolecular Chemistry and Physics
Volume217
Issue number21
DOIs
StatePublished - Nov 1 2016

Fingerprint

Polymer films
mechanical properties
Thin films
Mechanical properties
Water
polymers
thin films
water
Polyphenylene oxides
Chain length
sorption
Sorption
membranes
Membranes
probes
swelling
Swelling
Carbon
Oxides
oxides

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

Cite this

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abstract = "Water uptake is measured for ≈100 nm and ≈60 μm thick quaternized comb-shaped poly(2,6-dimethyl-1,4-phenylene oxide) (QA-PPO) polymers with 0, 6, 10, and 16 carbon alkyl side chains to probe the influence of thin film confinement. The thin film modulus is measured to probe the effect of side chain length on the thin film modulus and the ensuing water uptake. Increasing the alkyl side chain length results in increased modulus, decreased swelling strain, and decreased water uptake due to the lengthening of the n-alkyl side chains. Confinement effects on the comb-shaped QA-PPO water uptake are expressed through increased water uptake in the thin film compared to the bulk membrane. The thin films also exhibit a different water sorption mechanism consistent with two types of water compared to the bulk membranes that exhibit a single type of water sorption. (Figure presented.).",
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Side Chain Influence on the Mechanical Properties and Water Uptake of Confined Comb-Shaped Cationic Polymer Thin Films. / Kushner, Douglas I.; Zhu, Liang; Kusoglu, Ahmet; Hickner, Michael Anthony.

In: Macromolecular Chemistry and Physics, Vol. 217, No. 21, 01.11.2016, p. 2442-2451.

Research output: Contribution to journalArticle

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