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|Title:||Miscibility and interactions in blends and complexes of poly(N-methyl-4-piperidinyl methacrylate) with poly(p-vinylphenol)|
|Source:||Luo, X.,Goh, S.H.,Lee, S.Y. (1997-08-25). Miscibility and interactions in blends and complexes of poly(N-methyl-4-piperidinyl methacrylate) with poly(p-vinylphenol). Macromolecules 30 (17) : 4934-4938. ScholarBank@NUS Repository.|
|Abstract:||Poly(N-methyl-4-piperidinyl methacrylate) (PMPMA) was synthesized and characterized. PMPMA formed complexes with poly(p-vinylphenol) (PVPh) in ethanol over the entire feed composition range. The yields of complexes were in the range 29-76%, which were lower than those of poly(4-vinylpyridine) (P4VPy)/PVPh complexes obtained in ethanol. Complexation did not occur in N,N-dimethylformamide (DMF), but the DMF-cast blends were miscible. Fourier-transform infrared spectroscopic studies showed that the hydroxyl groups of PVPh interact with the carbonyl groups of PMPMA, and the intermolecular hydrogen-bonding interactions are weaker than the self-association of PVPh. X-ray photoelectron spectroscopic studies showed that the nitrogen atoms in the piperidine groups are not involved in intermolecular interactions with PVPh, likely a result of steric effects asserted by the N-methyl groups. Because of the inaccessibility of the piperidine nitrogen atoms, PMPMA interacts less intensely with PVPh than P4VPy does.|
|Appears in Collections:||Staff Publications|
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