INTERMACROMOLECULAR COMPLEXATION DUE TO SPECIFIC INTERACTIONS Ⅷ.MISCIBILITY AND COMPLEXATION BEHAVIOR OF POLY-(STYRENE-co-4-VINYLPHENOL)/POLY(ETHYL METHACRYLATE) IN BULK
返回论文页
Research Article|更新时间:2021-03-19
|
INTERMACROMOLECULAR COMPLEXATION DUE TO SPECIFIC INTERACTIONS Ⅷ.MISCIBILITY AND COMPLEXATION BEHAVIOR OF POLY-(STYRENE-co-4-VINYLPHENOL)/POLY(ETHYL METHACRYLATE) IN BULK
XIANG Maoliang, CHEN Junyan, JIANG Ming. INTERMACROMOLECULAR COMPLEXATION DUE TO SPECIFIC INTERACTIONS Ⅷ.MISCIBILITY AND COMPLEXATION BEHAVIOR OF POLY-(STYRENE-co-4-VINYLPHENOL)/POLY(ETHYL METHACRYLATE) IN BULK. [J]. Acta Polymerica Sinica (4):470-476(1999)
DOI:
XIANG Maoliang, CHEN Junyan, JIANG Ming. INTERMACROMOLECULAR COMPLEXATION DUE TO SPECIFIC INTERACTIONS Ⅷ.MISCIBILITY AND COMPLEXATION BEHAVIOR OF POLY-(STYRENE-co-4-VINYLPHENOL)/POLY(ETHYL METHACRYLATE) IN BULK. [J]. Acta Polymerica Sinica (4):470-476(1999)DOI:
INTERMACROMOLECULAR COMPLEXATION DUE TO SPECIFIC INTERACTIONS Ⅷ.MISCIBILITY AND COMPLEXATION BEHAVIOR OF POLY-(STYRENE-co-4-VINYLPHENOL)/POLY(ETHYL METHACRYLATE) IN BULK
Miscibility and intermacromolecular complexation between poly(styrene-co-4-vinylphenol)(STVPh) and poly(ethyl methacrylate)(PEMA) have been studied by means of differential scanning calorimetry (DSC) combined with physical aging and non-radiative energy transfer (NRET) fluorospectroscopy. Toluene which is inert to hydrogen bonding
was used as the casting solvent. Only 1 mol% hydroxyl content in STVPh was found to be able torender its iscibility with PEMA. When the hydroxyl level of STVPh was found to be able torender its iscibility with PEMA. When the hydroxyl level of STVPh is progressively increased
Tgs of the blends approach and ven exceed the values calculated from Fox equation
and the transitions become narrower. Besides
in the NRET measurements
the blends show far higher energy transfer efficiency compared with the ordinary miscible blends. All these facts indicated the complex formation between the two polymers. It was also observed that the casting solvent substatially affects the miscibility and complexation. When THF was used as the casting solvent
due to its proton-accepting ability
it partially destroied the hydrogen bonding between STVPh and PEMA in solutions and consequently hidered the miscibility in bulk. It was found that for the THF-cast blend
Tgs are 5~10K lower than those calculated from Fox equation
and the NRET efficiency is always olwer than that of corresponding toluenecast noes.
INTER MACROMOLECULAR COMPLEXATION DUE TO SPECIFIC INTERACTIONS Ⅸ. MISCIBILITY AND COMPLEX ATION BEHAVIOR OF POLY( STYRENE-co-4-VINYLPHENOL)/ POLY (STYRENE-co-4-VINYLPYRIDINE) IN BULK
GLASS TRANSITION TEMPERATURE OF POLYSTYRENE DETERMINED BY DSC REVISITED
SYNTHESIS AND FLUORESCENT PROPERTYIES OF PHOSPHAPHENANTHRENECONTAINING POLYSTYRENE
STUDIES ON INTERACTION OF HYDROXYPROPYLMETHYL CELLULOSE AND KONJAC GLUCOMANNAN MIXED SYSTEMS
SUPRAMOLECULAR HYDROGELS BASED ON 1,2,4-BENZENETRICARBOXYLIC ACID AND 4-HYDROXY PYRIDINE