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PMMA / hyperbranched poly (ester - amide) blend film phase structure in the formation of columnar
olymercaSinica (Polymer Technology), 2003, (2) :186-191KimYH. USpatent, C08g ,4857630.1987-12-07TsukurkVV. RinderspacherF, BliznyukVN. Langmuir, 1997,[link widoczny dla zalogowanych],13 (8) :2171-2176ZhangL, HuoF, WangZ,[link widoczny dla zalogowanych], WuL, ZhangX, HoppenerS, ChiL, FuchsH, ZhaoJ, NiuL, DongS. Langmuir ,2000,16:3813-3817FuZhiwei (Fu Zhiwei), TangLiming (TANG Liming), GuoBaohua (GUO Baohua), uuDeshan (Liu Shan). ActaPolymeficaSinica (Polymer Technology), 2003, (5): 75475610BrunsveldL,[link widoczny dla zalogowanych], FolmerBJB, MeijerEW, SijbesmaRP. ChemRev ,2001,[link widoczny dla zalogowanych],101:4071-4097FORMATIONOFCYLINDER-LIKEPHASESTRUCTUREINPMMA / HYPERBRANCHEDPoLY (ESTER-AMIDE) ENDTHINF Ⅱ MSLIYao, ZONGQi, TANGLiming, XIEXuming (DepartmentofChemicalEngineering, TsinghuaUniversity, Beijing100084) AbstractUsingphasecontrastmicroscope, theevolutionofthephaseseparationWasinvestigatedforpoly (methylmethacrylate) (PMMA) / hyperbranchedpoly (ester-amide) (HBP ) blendthinfilmsonglasssubstrates. Thefilmswithdifferentcomponentratiosshowdifferentphasemorphologiesandphaseseparationprocesses. Atafilmthicknessofabout500nm, acylinder-likedispersedphaseWasobservedinthefilmswithlowHBPcontent. Theconditionsforthespecialmorphologyoccurringwerealsostudied. TheinteractionbetweenthesubstrateandHBPandthethicknessofblendfilmsaleessentialfactorsfortheformationofthephasemorphology. ItWasalsofoundthattheappearanceofthespecialcylinder-likemorphologydependsonthecomponentratioandthefilmthickness. OnlythefilmthicknessWaetweentheuppercriticalfilmthicknessandthelowercriticalfilmthicknessCanthespecialstructurebeobserved. ThereWasatransitioninthecriticalthicknessastheHBPweightpercentvaried. KeywordsHBP, Thinfilm, Phaseseparation123456789
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