Confinement-induced Miscibility of Different PS-PMMA with Phenoxy Resin at the Air/Water Interface

Authors

  • Cheng-Da Lin Department of Chemical Engineering, National United University, Miao-Li, Taiwan 360, R.O.C.
  • Wen-Ping Hsu Department of Chemical Engineering, National United University, Miao-Li, Taiwan 360, R.O.C.

DOI:

https://doi.org/10.12974/2311-8717.2020.08.2

Keywords:

PS-PMMA, Phenoxy resin, Monolayer.

Abstract

The miscibility of the mixed monolayer behavior of different polystyrene-poly(methyl methacrylate) (PS-b-PMMA; PS-co-PMMA; PS-r-PMMA) with phenoxy resin(Phr) was studied from the measurements of surface pressure-area per molecule (π-A) isotherms using the Wilhelmy plate method with a KSV model mini-trough at three different temperatures (10˚C, 25˚C and 40˚C). The miscibility and non-ideality of the mixed monolayers were examined by calculating the excess surface area as a function of composition. The analysis of surface pressure-area per molecule (π-A) isotherms and excess area showed that mixed monolayers exhibit intermolecular interaction. When the pressure increases, the deviation can change from positive to negative. The mixed PS-b-PMMA monolayers exhibited mostly negative excess area among three studied PS-PMMA. The results of the mixed PS-co-PMMA monolayers were similar to those of mixed PS-r-PMMA likely because of close chain arrangements. Phr was found to be in the majority miscible with PS-PMMA at the air/water interface likely because of hydrogen bonding between Phr and PS-PMMA and confinement inducement. 

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Published

2020-06-06

How to Cite

Lin, C.-D., & Hsu, W.-P. (2020). Confinement-induced Miscibility of Different PS-PMMA with Phenoxy Resin at the Air/Water Interface. Journal of Composites and Biodegradable Polymers, 8, 7–16. https://doi.org/10.12974/2311-8717.2020.08.2

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