Solution blending of polystyrene and poly(methyl methacrylate)

Charles M. Burns; Woo Nyon Kim

doi:10.1002/pen.760282105

Solution blending of polystyrene and poly(methyl methacrylate)

Charles M. Burns, Woo Nyon Kim

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

Blends of poly(methyl methacrylate) (PMMA) and polystyrene (PS) have been investigated by differential scanning calorimetry and scanning electron microscopy. Blends were made of a low molecular weight PS with three PMMAs having number‐average molecular weights of (1) 18,300, (2) 37,000, and (3) 211,000, The blend was found to be partially miscible. The composition‐dependent values of the polymer‐polymer interaction parameter (g₁₂) were determined and found to be from 0.015 to 0.029 for solution casting at 25°C. The interaction parameter (g₁₂) increases with increasing PMMA molecular weights in the PMMA/PS blend systems. This result is consistent with the behavior of the glass transition temperatures and with the microscopy study which indicate that compatibility is greater in the PMMA‐1/PS blends having the low molecular weight of PMMA than in the PMMA‐3/PS blends having the higher molecular weights of PMMA.

Original language	English
Pages (from-to)	1362-1372
Number of pages	11
Journal	Polymer Engineering and Science
Volume	28
Issue number	21
DOIs	https://doi.org/10.1002/pen.760282105
Publication status	Published - 1988 Nov
Externally published	Yes

ASJC Scopus subject areas

Chemistry(all)
Polymers and Plastics
Materials Chemistry

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10.1002/pen.760282105

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abstract = "Blends of poly(methyl methacrylate) (PMMA) and polystyrene (PS) have been investigated by differential scanning calorimetry and scanning electron microscopy. Blends were made of a low molecular weight PS with three PMMAs having number‐average molecular weights of (1) 18,300, (2) 37,000, and (3) 211,000, The blend was found to be partially miscible. The composition‐dependent values of the polymer‐polymer interaction parameter (g12) were determined and found to be from 0.015 to 0.029 for solution casting at 25°C. The interaction parameter (g12) increases with increasing PMMA molecular weights in the PMMA/PS blend systems. This result is consistent with the behavior of the glass transition temperatures and with the microscopy study which indicate that compatibility is greater in the PMMA‐1/PS blends having the low molecular weight of PMMA than in the PMMA‐3/PS blends having the higher molecular weights of PMMA.",

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AU - Burns, Charles M.

AU - Kim, Woo Nyon

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Solution blending of polystyrene and poly(methyl methacrylate)

Abstract

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