1994 Fiscal Year Final Research Report Summary
A STUDY ON PHASE SEPARATION PHENOMENA OF POLYMER ALLOYS
| Project/Area Number |
05650089
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | KOGAKUIN UNIVERSITY |
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Principal Investigator |
SATO Sadao DEPARTMENT OF MECHANICAL ENGINEERING,FACULTY OF ENGINEERING,KOGAKUIN UNIVERSITY,LECTURER, 工学部機械工学科, 講師 (30133317)
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| Project Period (FY) |
1993 – 1994
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| Keywords | Polymer Alloys / Phase Separetion / Phase diagram / Turbidity Measurement / Immiscibility / Morphology / p-v-T Properties / Compressibility |
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| Research Abstract |
In order to investigate the phase separarion phenomena of polymer alloys such as PC/PMMA,PS/SBR and PET/PP,we have constructed an apparatus for measuring the phase separation temperature and the p-v-T properties of polymer alloys.In this report, the phase diagrams, thermal properties, morphology and p-v-T behavior for various polymer alloys are discussed.
We concluded from the above discussion that the lower critical solution temperature (LCST) was observed at PC/PMMA polymer alloys.The DSC curve for polymer alloys appeared two peaks by heat absoption or dispation in the its curve, those peaks show glass transition temperature (T_g) , melting point (T_m) and specific heat (C_p) of base polymer comprising the polymer alloys, respectively.In PC/PPMA polymer alloys, the morphology of PC component (*50wt%) before phase separation was observed dispersing with the fine PC particles, whereas it after phase separtion was observed agglomerating with the large-sized PC particles.The v-T curves of PET/PP polymer alloys in each content ratio are between PET and PP itself at atmospheric pressure.And the compressibility increased under solid state, decreased under liquid state with increasing PET content.
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