Phase behavior of tetramethylpolycarbonate blends with styrene‐based methacrylate copolymers and their interaction energies

Moon, Eun Ju; Kim, M. J.; Choi, H. K.; Kim, C. K.

doi:10.1002/polb.10184

Cited by 4 publications

(1 citation statement)

References 21 publications

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“…The glass‐transition temperature ( T g ) was defined as the onset of the change in the heat capacity during the second heating from room temperature to 250 °C. The temperature at which phase separation was caused by LCST‐type phase behavior was measured by an annealing technique23, 24 so that the closest true equilibrium temperature could be found.…”

Section: Methodsmentioning

confidence: 99%

Miscibility of polysulfone blends with poly(1‐vinylpyrrolidone‐co‐styrene) copolymers and their interaction energies

Kim

et al. 2003

J Polym Sci B Polym Phys

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The miscibility of polysulfone (PSf) with various hydrophilic copolymers was explored. Among these blends, PSf gave homogeneous mixtures with poly(1vinylpyrrolidone-co-styrene) [P(VP-S)] copolymers when these copolymers contained 68 -88 wt % 1-vinylpyrrolidone (VP). Miscible PSf blends with P(VP-S) copolymers underwent phase separation on heating caused by lower critical solution temperature (LCST)-type phase behavior. The phase behavior depended on the copolymer composition. Changes in the VP content of P(VP-S) copolymers from 65 to 68 wt % shifted the phase behavior from immiscibility to miscibility and the LCST behavior. The phaseseparation temperatures of the miscible blends first increased gradually with the VP content, then went through a broad maximum centered at about 80 wt % VP, and finally decreased just before the limiting content of VP for miscibility with PSf. The interaction energies of binary pairs involved in PSf/P(VP-S) blends were evaluated from the phase-separation temperatures of PSf/P(VP-S) blends with lattice-fluid theory combined with a binary interaction model. The decrease in the contact angle between water and the membrane surface with increasing VP content in P(VP-S) copolymers indicated that the hydrophobic properties of PSf could be improved via blending with hydrophilic P(VP-S) copolymers.

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Section: Methodsmentioning

confidence: 99%

Miscibility of polysulfone blends with poly(1‐vinylpyrrolidone‐co‐styrene) copolymers and their interaction energies

Kim

et al. 2003

J Polym Sci B Polym Phys

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Miscibility of DMPC‐TMPC copolycarbonate/SMMA copolymer blends and their interaction energies of binary pairs involved in blends

Yoo

Kim

2004

Polymer International

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The isothermal miscibility map and phase‐separation temperatures caused by lower critical solution temperature‐type phase behavior for blends of poly[2,2,‐propane‐bis{4‐(2‐methyl phenyl)} carbonate]‐poly[2,2,‐propane‐bis{4‐(2,6‐dimethyl phenyl)} carbonate] (DMPC‐TMPC) with poly[(styrene)‐co‐(methyl methacrylate)] (SMMA) copolymers have been determined. SMMA copolymers containing equal to or less than 37 wt% MMA formed miscible blends with DMPC‐TMPC copolycarbonates containing equal to or more than 60 wt% TMPC. The observed phase‐separation temperatures indicate that the miscibility decreases as the DMPC content in DMPC‐TMPC increases, while addition of MMA to the styrene initially increases miscibility with DMPC‐TMPC but ultimately leads to immiscibility. The binary interaction energies involved in these blends were calculated from the phase boundaries using the lattice‐fluid theory combined with the binary interaction model. The spinodal temperatures predicted from the lattice‐fluid theory using the calculated interaction energies are similar to the experimental phase‐separation temperatures. Copyright © 2004 Society of Chemical Industry

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Miscible Polymer Blends

Goh

2014

Polymer Blends Handbook

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Phase behavior of tetramethylpolycarbonate blends with styrene‐based methacrylate copolymers and their interaction energies

Cited by 4 publications

References 21 publications

Miscibility of polysulfone blends with poly(1‐vinylpyrrolidone‐co‐styrene) copolymers and their interaction energies

Miscibility of polysulfone blends with poly(1‐vinylpyrrolidone‐co‐styrene) copolymers and their interaction energies

Miscibility of DMPC‐TMPC copolycarbonate/SMMA copolymer blends and their interaction energies of binary pairs involved in blends

Miscible Polymer Blends

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