Miscibility of poly( N-vinyl-2-pyrrolidone) with (methyl methacrylate)/(2-hydroxyethyl methacrylate) and (n-butyl methacrylate)/(2-hydroxyethyl methacrylate) copolymers

The miscibility of poly( N-vinyl-2-pyrrolidone) (PVP) with (methyl methacrylate)/(2-hydroxyethyl methacrylate) (MMA/HEMA) and (n-butyl methacrylate)/(2-hydroxyethyl methacrylate) (BMA/HEMA) copolymers was studied. While PVP is immiscible with poly(methyl methacrylate), it is miscible with a MMA/HEMA...

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Bibliographic Details
Published in:European polymer journal 1991, Vol.27 (12), p.1379-1381
Main Authors: Lee, S.Y., Low, M.Y., Goh, S.H.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
Thermal and thermodynamic properties
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Summary:The miscibility of poly( N-vinyl-2-pyrrolidone) (PVP) with (methyl methacrylate)/(2-hydroxyethyl methacrylate) (MMA/HEMA) and (n-butyl methacrylate)/(2-hydroxyethyl methacrylate) (BMA/HEMA) copolymers was studied. While PVP is immiscible with poly(methyl methacrylate), it is miscible with a MMA/HEMA copolymer containing 1.9 mol% of HEMA. PVP is immiscible with a BMA/HEMA copolymer containing 13.9 mol% of HEMA and its miscibility with a BMA/HEMA copolymer containing 17.4 mol% of HEMA is composition dependent. However, PVP is completely miscible with BMA/HEMA copolymers having HEMA contents of 20.9, 23.4 and 27.5 mol%. The results show that, as the size of the pendant ester groups becomes larger, the polymethacrylate requires the incorporation of a larger amount of HEMA to achieve miscibility with PVP.
ISSN:0014-3057
1873-1945
DOI:10.1016/0014-3057(91)90238-J