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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 1995.1
- 수록면
- 1 - 4 (4page)
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The microstructure of polymer membranes produced via thermally induced phase separation (TIPS) of polymer solutions is a strong function of both the early-stage (by spinodal decomposition or nucleation & growth) and the late-stage phase separation (referred to in general as coarsening). In the case of early stage effects, the membrane morphology resulting from a nucleation & growth mechanism is either a poorly interconnecsed, stringy, beady structure which is mechanically fragile or a well interconnected structure with highly nonuniform pore sizes. In contrast, spinodal decomposition results in a well interconnected, mechanically strong membrane with highly uniform pore sizes. Here I describe recent quantitative studies of the coarsening effects on the microstructure of membranes produced via TIPS process. The dependence of microstructure on coarsening time, quench depth, solution viscosity, and polymer molecular weight was investigated in order to distinguish among three possible coarsening mechanisms, Ostwald ripening, coalescence, and hydrodynamic flow, which may be responsible for structural evolution after the early-stage phase Separation (spinodal decomposition or nucleation & growth).
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Quantitative characterization of coarsening effects in phase - separating polymer solutions and membranes made from them
한국고분자학회 학술대회 연구논문 초록집
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Coarsening Mechanism In Thermally Induced Phase Separation Process
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SPINODAL DECOMPOSITION IN POLYMER BLENDS AND ITS APPLICATION
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Structure Design of TIPS ( Thermally - Induced Phase Separation ) Membrane Via Molecular Weight Control
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The Effect of End - groups of Diluent on the Pore Size in Thermally - Induced Phase Separation ( TIPS ) Membrane
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Fabrication of co-continuous conducting film using spinodal decomposition in binary polymer blends
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Microstructure and Pore Size Control of Silica Membrane for Gas Separation at Elevated Temperatures
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Mixing of Polymer Blends under Shear Flow and Spinodal Decomposition after Cessation of Flow
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