Adsorption behavior of water soluble polymers with lower critical solution temperature

1985 ◽  
Vol 263 (5) ◽  
pp. 353-360 ◽  
Author(s):  
K. Furusawa ◽  
T. Tagawa
Keyword(s):  
Lower Critical Solution Temperature ◽  
Water Soluble ◽  
Adsorption Behavior ◽  
Solution Temperature ◽  
Critical Solution Temperature ◽  
Water Soluble Polymers ◽  
Soluble Polymers

scholarly journals Temperature-Responsive Polymers for Biological Applications

2003 ◽  
Vol 785 ◽  
Author(s):  
M. Rackaitis ◽  
E. Manias
Keyword(s):  
Temperature Response ◽  
Water Soluble ◽  
Solution Temperature ◽  
Biological Applications ◽  
Polymer Grafting ◽  
Grafted Polymers ◽  
Water Soluble Polymers ◽  
Soluble Polymers ◽  
Responsive Polymers ◽  
Cloud Points

ABSTRACTWater soluble polymers with tunable lower critical solution temperature (LCST) are of increasing interest for biological applications such as cell patterning, smart drug release, DNA sequencing etc. The present study addresses control of the polymer temperature response in water by varying chemical composition of the monomer. In order to achieve this a series of polymers were designed and synthesized based on an ethyleneoxide/ethylene monomer (EO/EE). Polymers were synthesized using polycondensation reactions of difunctional m-EO and n-EE oligomers. The cloud point follows linearly the balance of hydrophobic/hydrophilic interaction and can be tailored in the range of 7 – 70°C by varying the m/n composition and polymer type. Polymer grafting onto the silicon surface exhibits similar solubility behaviour. Adhesion energy measurements show that grafted polymers have solubility cloud points at the temperatures that are close to the ones of the bulk polymer solutions.

Substituent Effects on a Photo-Induced Alternation of the Lower Critical Solution Temperatures of Poly(N-isopropylacrylamide) with Azobenzene Units

2001 ◽  
Vol 710 ◽  
Author(s):  
Haruhisa Akiyama ◽  
Nobuyuki Tamaoki
Keyword(s):  
Free Radical ◽  
Visible Light ◽  
Lower Critical Solution Temperature ◽  
Water Solubility ◽  
Substituent Effects ◽  
Ultra Violet ◽  
Wettability Alteration ◽  
Solution Temperature ◽  
Critical Solution Temperature ◽  
Soluble Polymers

ABSTRACTWe synthesized copolymers of N-isopropylacrylamide (NIPAM) and azobenzene-containing acrylates or acrylamides by free radical polymerization, and investigated the water solubility of these polymers upon irradiation with ultra-violet and visible light. The solubility depended on concentration and structure of photoreactive azobenzene unit in the polymers. The soluble polymers showed the lower critical solution temperature, which was varied along with light irradiation. Photo-induced large wettability alteration was observed in the film.

scholarly journals Adsorption Behavior of Water Soluble Polymers with Different Ionicities on Ceramic Particle Surfaces

1997 ◽  
Vol 105 (1227) ◽  
pp. 1002-1006 ◽  
Author(s):  
Shigekazu MURATA ◽  
Masahiko NAKAMURA ◽  
Haruhisa SHIOMI
Keyword(s):  
Ceramic Particle ◽  
Water Soluble ◽  
Adsorption Behavior ◽  
Water Soluble Polymers ◽  
Soluble Polymers

scholarly journals Designing the thermal behaviour of aqueous biphasic systems composed of ammonium-based zwitterions

2017 ◽  
Vol 19 (17) ◽  
pp. 4012-4016 ◽  
Author(s):  
Ana M. Ferreira ◽  
Helena Passos ◽  
Akiyoshi Okafuji ◽  
Mara G. Freire ◽  
João A. P. Coutinho ◽  
...  
Keyword(s):  
Thermal Behaviour ◽  
Lower Critical Solution Temperature ◽  
Water Soluble ◽  
Solution Temperature ◽  
Critical Solution Temperature ◽  
Aqueous Biphasic Systems ◽  
Upper Critical Solution Temperature ◽  
Aqueous Biphasic ◽  
Biphasic Systems

The design of the thermal behaviour – from an upper critical solution temperature (UCST) to a lower critical solution temperature (LCST) – of aqueous biphasic systems composed of water-soluble ammonium-based zwitterions.

Chemical-responsive control of lower critical solution temperature behavior by pillar[10]arene-based host–guest interactions

2014 ◽  
Vol 50 (89) ◽  
pp. 13754-13756 ◽  
Author(s):  
Xiaodong Chi ◽  
Min Xue
Keyword(s):  
Ethylene Oxide ◽  
Cloud Point ◽  
Lower Critical Solution Temperature ◽  
Water Soluble ◽  
Temperature Behavior ◽  
Solution Temperature ◽  
Critical Solution Temperature ◽  
System P ◽  
Guest System

A new water-soluble thermoresponsive pillar[10]arene with tri(ethylene oxide) groups was synthesized and its cloud point could be reversibly controlled based on a chemical-responsive host–guest system.

scholarly journals A thermoresponsive poly(ionic liquid) membrane enables concentration of proteins from aqueous media

2016 ◽  
Vol 52 (47) ◽  
pp. 7497-7500 ◽  
Author(s):  
Yuki Kohno ◽  
Douglas L. Gin ◽  
Richard D. Noble ◽  
Hiroyuki Ohno
Keyword(s):  
Ionic Liquid ◽  
Lower Critical Solution Temperature ◽  
Liquid Membrane ◽  
Aqueous Media ◽  
Water Soluble ◽  
Phase Behaviour ◽  
Solution Temperature ◽  
Critical Solution Temperature ◽  
New Type ◽  
Poly Ionic Liquid

A new type of poly(ionic liquid) membrane, which shows switchable hydrated states via lower critical solution temperature-type phase behaviour, enables concentration of some water-soluble proteins from aqueous media.

scholarly journals The Properties of Thermosensitive Zwitterionic Sulfobetaine NIPAM-co-DMAAPS Polymer and the Hydrogels: The Effects of Monomer Concentration on the Transition Temperature and Its Correlation with the Adsorption Behavior

2020 ◽  
Vol 20 (2) ◽  
pp. 324
Author(s):  
Eva Oktavia Ningrum ◽  
Agus Purwanto ◽  
Galuh Chynintya Rosita ◽  
Asep Bagus
Keyword(s):  
Molecular Structure ◽  
Phase Transition ◽  
Transition Temperature ◽  
Lower Critical Solution Temperature ◽  
Monomer Concentration ◽  
Adsorption Behavior ◽  
Solution Temperature ◽  
Critical Solution Temperature ◽  
Adsorption Amount

The properties of N-isopropylacrylamide copolymerized with N,N-dimethyl(acrylamidopropyl)ammonium propane sulfonate [poly(NIPAM-co-DMAAPS)] prepared with various monomer ratios such as transition temperature, molecular structure, viscosity were systematically investigated in water and Zn(NO3)2 solution. Poly(NIPAM-co-DMAAPS) in water and Zn(NO3)2 solution exhibited a phase transition with a lower critical solution temperature (LCST). The higher ratio of NIPAM monomer in poly(NIPAM-co-DMAAPS), the lower the LCST of the polymer. Furthermore, the transition temperature of poly(NIPAM-co-DMAAPS) with a lower NIPAM concentration were not confirmed both in water nor Zn(NO3)2 solution. The more increase the NIPAM concentration used in the preparation, the more increase the polymer viscosity. Moreover, the more increase the adsorption amount of ions onto the gel, the more increase the polymer transmittance as well.

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