Citation:
Rui Song, De-bin Yang, Ling-hao He, Guang-tao Yao, MISCIBILITY AND MORPHOLOGY OF THIN FILMS OF BLENDS OF POLYSTYRENE WITH BROMINATED POLYSTYRENES: EFFECTS OF VARYING THE MOLECULAR WEIGHT, BROMINATION DEGREE AND ANNEALING[J]. Chinese Journal of Polymer Science,
2006, 24(5): 515-528.
MISCIBILITYANDMORPHOLOGYOFTHINFILMSOFBLENDSOFPOLYSTYRENEWITHBROMINATEDPOLYSTYRENES:EFFECTSOFVARYINGTHEMOLECULARWEIGHT,BROMINATIONDEGREEANDANNEALING
摘要:
Thinfilmsofincompatiblepolymerblendscanformavarietyofstructuresduringpreparationandsubsequentannealingprocess.Forthepolymerblendsystemconsistingofpolystyreneandpoly(styrene-co-p-bromo-styrene),i.e.,PS/PBrxS,itscompatibilitycouldbeadjustedbyvaryingthedegreeofbrominationandthemolecularweightofbothcomponentscomprised.Inthispaper,surfacechemicalcompositionsofthecastandtheannealingfilmswereinvestigatedbyX-rayphotoelectronspectroscopy(XPS)andcontactanglemeasurement;meanwhile,surfacetopographicalchangesarefollowedbyatomicforcemicroscopy(AFM).Inaddition,substantialattentionwaspaidtotheeffectofannealingonthemorphologicvariationsinducedbyphaseseparationand/ordewettingofthethinfilm.Moreover,theinfluencesofthemolecularweight,Mw,aswellasthebrominateddegree,x%,onthesamplesurfaceareexploredsystematically,andthecorrespondingobservationsareexplainedinvirtueoftheFlory-Hugginstheory,alongwiththedewettingofthepolymerthinfilm.
English
MISCIBILITY AND MORPHOLOGY OF THIN FILMS OF BLENDS OF POLYSTYRENE WITH BROMINATED POLYSTYRENES: EFFECTS OF VARYING THE MOLECULAR WEIGHT, BROMINATION DEGREE AND ANNEALING
Abstract:
Thinfilmsofincompatiblepolymerblendscanformavarietyofstructuresduringpreparationandsubsequentannealingprocess.Forthepolymerblendsystemconsistingofpolystyreneandpoly(styrene-co-p-bromo-styrene),i.e.,PS/PBrxS,itscompatibilitycouldbeadjustedbyvaryingthedegreeofbrominationandthemolecularweightofbothcomponentscomprised.Inthispaper,surfacechemicalcompositionsofthecastandtheannealingfilmswereinvestigatedbyX-rayphotoelectronspectroscopy(XPS)andcontactanglemeasurement;meanwhile,surfacetopographicalchangesarefollowedbyatomicforcemicroscopy(AFM).Inaddition,substantialattentionwaspaidtotheeffectofannealingonthemorphologicvariationsinducedbyphaseseparationand/ordewettingofthethinfilm.Moreover,theinfluencesofthemolecularweight,Mw,aswellasthebrominateddegree,x%,onthesamplesurfaceareexploredsystematically,andthecorrespondingobservationsareexplainedinvirtueoftheFlory-Hugginstheory,alongwiththedewettingofthepolymerthinfilm.
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