scholarly journals Sol–Gel Transition during Inclusion Complex Formation between α-Cyclodextrin and High Molecular Weight Poly(ethylene glycol)s in Aqueous Solution

1994 ◽  
Vol 26 (9) ◽  
pp. 1019-1026 ◽  
Author(s):  
Jun Li ◽  
Akira Harada ◽  
Mikiharu Kamachi
Keyword(s):  
Aqueous Solution ◽  
Molecular Weight ◽  
Complex Formation ◽  
Sol Gel ◽  
Inclusion Complex Formation ◽  
Poly Ethylene Glycol ◽  
Sol Gel Transition ◽  
Poly Ethylene ◽  
High Molecular Weight Poly ◽  
Gel Transition

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.

Biomolecularly stimuli-responsive tetra-poly(ethylene glycol) that undergoes sol–gel transition in response to a target biomolecule

2017 ◽  
Vol 8 (41) ◽  
pp. 6378-6385 ◽  
Author(s):  
Chisa Norioka ◽  
Kazuma Okita ◽  
Miho Mukada ◽  
Akifumi Kawamura ◽  
Takashi Miyata
Keyword(s):  
Phase Transition ◽  
Ethylene Glycol ◽  
Sol Gel ◽  
Stimuli Responsive ◽  
Poly Ethylene Glycol ◽  
Stimuli Responsive Polymers ◽  
Responsive Polymers ◽  
Sol Gel Transition ◽  
Poly Ethylene ◽  
Gel Transition

We designed biotin-conjugated four-armed poly(ethylene glycol) (biotinylated Tetra-PEG) as biomolecularly stimuli-responsive polymers that underwent the phase transition from a sol to a gel state in response to avidin as a target biomolecule.

scholarly journals Application of Thermosensitive Peptide Copolymer Gels to Removal of Endocrine Disruptor

2009 ◽  
Vol 2009 ◽  
pp. 1-4 ◽  
Author(s):  
Satoshi Tanimoto ◽  
Naoto Yagi ◽  
Hitoshi Yamaoka
Keyword(s):  
Bisphenol A ◽  
Ring Opening ◽  
Endocrine Disruptor ◽  
Sol Gel ◽  
Chloroform Solution ◽  
Poly Ethylene Glycol ◽  
Sol Gel Transition ◽  
Poly Ethylene ◽  
Peptide Segments ◽  
Gel Transition

Poly(L-leucine)-block-poly(ethylene glycol)-block-poly(L-leucine) triblock copolymers were synthesized by a ring-opening polymerization ofα-amino acid N-carboxyanhydride with amino-terminated PEG as an initiator. The chloroform solution of these peptide copolymers showed a thermo-sensitive sol-gel transition. The transition temperature varied as a function of the length of peptide segments. Additionally, we used these peptide copolymers to remove an endocrine disruptor such as bisphenol A from its aqueous solution. As a result, it became clear that the peptide copolymer gel used in this study could capture bisphenol A efficiently.

scholarly journals ‘Reverse’ Hofmeister effects on the sol–gel transition rates for an α-helical peptide–PEG bioconjugate

2018 ◽  
Vol 20 (30) ◽  
pp. 20287-20295 ◽  
Author(s):  
Sean C. O’Neill ◽  
Ankit D. Kanthe ◽  
Jacob A. Weber ◽  
Raymond S. Tu
Keyword(s):  
Ethylene Glycol ◽  
Sol Gel ◽  
Transition Rates ◽  
Poly Ethylene Glycol ◽  
Helical Peptide ◽  
Aqueous Environments ◽  
Sol Gel Transition ◽  
Poly Ethylene ◽  
Gel Transition

We examine the dynamics of the sol–gel transition for end-functionalized linear- and 4-arm-peptides bioconjugated to poly-ethylene glycol (PEG) in aqueous environments with increasingly chaotropic (Cl− < Br− < I−) anions.

Hydrolytically and Reductively Degradable High-Molecular-Weight Poly(ethylene glycol)s

2007 ◽  
Vol 208 (24) ◽  
pp. 2642-2653 ◽  
Author(s):  
Alena Braunová ◽  
Michal Pechar ◽  
Richard Laga ◽  
Karel Ulbrich
Keyword(s):  
Molecular Weight ◽  
Ethylene Glycol ◽  
High Molecular Weight ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene ◽  
High Molecular Weight Poly

scholarly journals DYNAMICAL ASPECTS OF SOL-GEL TRANSITION IN AN AQUEOUS SOLUTION OF POLY (VINYL ALCOHOL)

1984 ◽  
Vol 40 (4-5) ◽  
pp. T158-T160
Author(s):  
Motoko Komatsu ◽  
Takashi Inoue ◽  
Keizo Miyasaka
Keyword(s):  
Aqueous Solution ◽  
Vinyl Alcohol ◽  
Sol Gel ◽  
Poly Vinyl Alcohol ◽  
Sol Gel Transition ◽  
Gel Transition
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