scholarly journals Effect of Poly(Ethylene Glycol) on Structure and Properties of Polypropylene Membrane Formed Via Thermally Induced Phase Separation

2012 ◽  
Vol 44 ◽  
pp. 1636-1638 ◽  
Author(s):  
Z.Y. Xi ◽  
Y.Q. Yang ◽  
Y.J. Wang ◽  
H. Zhao
Keyword(s):  
Phase Separation ◽  
Ethylene Glycol ◽  
Structure And Properties ◽  
Thermally Induced Phase Separation ◽  
Poly Ethylene Glycol ◽  
Thermally Induced ◽  
Polypropylene Membrane ◽  
Poly Ethylene

Controlled Hierarchical Pore Structures in Ethylene-Bridged Polysilsesquioxane Gels

2003 ◽  
Vol 788 ◽  
Author(s):  
Yuki Kobayashi ◽  
Kazuki Nakanishi ◽  
Kazuyuki Hirao
Keyword(s):  
Phase Separation ◽  
Ethylene Glycol ◽  
Triblock Copolymers ◽  
Sol Gel ◽  
Poly Ethylene Glycol ◽  
Bridged Polysilsesquioxane ◽  
Sol Gel Transition ◽  
Poly Ethylene ◽  
Hierarchical Pore ◽  
Gel Transition

ABSTRACTFormation of hierarchical macropores and mesopores in ethylene-bridged polysilsesquioxane sol-gel systems via concurrent sol-gel transition and phase separation induced by the incorporation of supramolecular templats has been investigated. A series of poly(ethylene-glycol)-poly(propyleneglycol)- poly(ethyleneglycol) triblock copolymers, EOPOEOs, have been employed as supramolecular templates, while 1,2-bis(trimethoxysilyl)ethane was used as a polysilsesquioxane source. Successful combination of templated mesopores and well-defined macropores due to phase-separation has been found in the system with EOPOEOs having 70 PO units and respective 20 EO units. Although similar macroporous morphology has been obtained for all the EOPOEOs with EO chain longer or shorter than 20 units, the optimum composition for the co-continuous macropores and that for templated mesopores deviated from each other, resulting in the failure of producing hierarchical macropores and mesopores.

Effect of diluent on poly(ethylene-co-vinyl alcohol) hollow-fiber membrane formation via thermally induced phase separation

2004 ◽  
Vol 95 (2) ◽  
pp. 219-225 ◽  
Author(s):  
Mengxian Shang ◽  
Hideto Matsuyama ◽  
Masaaki Teramoto ◽  
Junpei Okuno ◽  
Douglas R. Lloyd ◽  
...  
Keyword(s):  
Phase Separation ◽  
Hollow Fiber ◽  
Vinyl Alcohol ◽  
Hollow Fiber Membrane ◽  
Thermally Induced Phase Separation ◽  
Fiber Membrane ◽  
Membrane Formation ◽  
Thermally Induced ◽  
Poly Ethylene

Poly(lactic acid)/poly(ethylene glycol) stereocomplexed physical hydrogels showing thermally-induced gel–sol–gel multiple phase transitions

2018 ◽  
Vol 2 (2) ◽  
pp. 313-322 ◽  
Author(s):  
Hailiang Mao ◽  
Chen Wang ◽  
Xiaohua Chang ◽  
Heqing Cao ◽  
Guorong Shan ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Phase Transitions ◽  
Ethylene Glycol ◽  
Sol Gel ◽  
Poly Lactic Acid ◽  
Poly Ethylene Glycol ◽  
Thermally Induced ◽  
Multiple Phase ◽  
Poly Ethylene

A novel thermogel exhibiting unique thermally-induced gel–sol–gel multiple phase transitions was obtained by controlling the compositions of PLA/PEG copolymers.

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