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.

Effects of Temperature on Bulk Properties of Hydrogels Made from Hydrophobically Modified Hydroxyethyl Cellulose in Surfactant Solutions

1993 ◽  
Vol 331 ◽  
Author(s):  
Shun-Yuan Wu ◽  
Carol A. Steiner
Keyword(s):  
Sodium Dodecyl ◽  
Temperature Response ◽  
Water Soluble ◽  
Hydroxyethyl Cellulose ◽  
Gel Properties ◽  
Water Soluble Polymers ◽  
Soluble Polymers ◽  
Hydrophobically Modified ◽  
Effects Of Temperature ◽  
Opposing Effects

AbstractThe temperature response of hydrogels made from hydrophobically modified water soluble polymers is complicated by the fact that while the hydrophobilic backbone becomes dehydrated and thus less compatible with aqueous solvents as the temperature is increased, the hydrophobic side chains become more compatible. These opposing effects taken together will govern gel properties such as volume, storage modulus, etc. We will discuss the effects of temperature on the composition, volume and reheological properties of hydrogels made from hydrophobically modified hydroxyethyl cellulose (HMHEC) in aqueous solutions containing the surfactant sodium dodecyl sulfate (SDS).

Smart Polymers and their Applications: A Review

2017 ◽  
Vol 8 (03) ◽  
Author(s):  
Gore S. A. ◽  
Gholve S. B. ◽  
Savalsure S. M. ◽  
Ghodake K. B. ◽  
Bhusnure O. G. ◽  
...  
Keyword(s):  
Oil Recovery ◽  
Water Soluble ◽  
Solution Temperature ◽  
Smart Polymers ◽  
Stimuli Responsive ◽  
Responsive Materials ◽  
Water Soluble Polymers ◽  
Commercial Applications ◽  
Stimuli Sensitive ◽  
External Stimuli

Smart polymers are materials that respond to small external stimuli. These are also referred as stimuli responsive materials or intelligent materials. Smart polymers that can exhibit stimuli-sensitive properties are becoming important in many commercial applications. These polymers can change shape, strength and pore size based on external factors such as temperature, pH and stress. The stimuli include salt, UV irradiation, temperature, pH, magnetic or electric field, ionic factors etc. Smart polymers are very promising applicants in drug delivery, tissue engineering, cell culture, gene carriers, textile engineering, oil recovery, radioactive wastage and protein purification. The study is focused on the entire features of smart polymers and their most recent and relevant applications. Water 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.

New quenching media based on water-soluble polymers

1981 ◽  
Vol 23 (2) ◽  
pp. 104-106 ◽  
Author(s):  
A. V. Tolstousov ◽  
O. A. Bannykh
Keyword(s):  
Water Soluble ◽  
Water Soluble Polymers ◽  
Soluble Polymers ◽  
Quenching Media

scholarly journals SANS quantification of bound water in water-soluble polymers across multiple concentration regimes

Soft Matter ◽  
2021 ◽  
Author(s):  
Helen Yao ◽  
Bradley D. Olsen
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Bound Water ◽  
Water Soluble ◽  
Wide Concentration Range ◽  
Water Molecules ◽  
Water Soluble Polymers ◽  
Soluble Polymers

Small-angle neutron scattering is used to measure the number of bound water molecules associating with three polymers over a wide concentration range. Different fitting workflows are evaluated and recommended depending on the concentration regime.

scholarly journals Flow Enhancement of Water-Soluble Polymers through Porous Media by Preshearing

2021 ◽  
Author(s):  
Mohsen Mirzaie Yegane ◽  
Julia Schmidt ◽  
Fatima Dugonjic-Bilic ◽  
Benjamin Gerlach ◽  
Pouyan E. Boukany ◽  
...  
Keyword(s):  
Porous Media ◽  
Water Soluble ◽  
Water Soluble Polymers ◽  
Soluble Polymers ◽  
Flow Enhancement
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