Miscibility study of poly(styrene-co-vinylphenol) with poly(n-butyl methacrylate) by NMR

The miscibility of poly(styrene-co-vinylphenol) (MPS) containing 1, 2, and 4.4% vinylphenol monomer units with poly(n,-butyl methacrylate) (PnBMA) was studied with exp 13 C solid-state NMR complemented with DSC, FTIR, and cloud point measurements. Results indicate that the number of vinylphenol mono...

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Bibliographic Details
Published in:Macromolecules 1990-11, Vol.23 (24), p.5071-5074
Main Authors: Jong, Lei, Pearce, Eli M, Kwei, T. K, Dickinson, L. Charles
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(styrene-co-vinylphenol) (MPS) containing 1, 2, and 4.4% vinylphenol monomer units with poly(n,-butyl methacrylate) (PnBMA) was studied with exp 13 C solid-state NMR complemented with DSC, FTIR, and cloud point measurements. Results indicate that the number of vinylphenol monomer units determines the domain size of these blends. The 4.4% MPS/PnBMA blend exhibits a single T sub g . The limit of miscibility of this blend calculated from the NMR experiment indicates a scale of homogeneity corresponding to a T exp H sub 1 rho value of approx 8 ms. Spectra, Graphs. 18 ref.--AA
ISSN:0024-9297
1520-5835
DOI:10.1021/ma00226a005