Lower Critical Solution Temperature Phase Transition of Poly(PEGMA) Hydrogel Thin Films

Langmuir ◽  
2021 ◽  
Author(s):  
Ekkachai Martwong ◽  
Yvette Tran
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Lower Critical Solution Temperature ◽  
Solution Temperature ◽  
Temperature Phase ◽  
Critical Solution Temperature ◽  
Temperature Phase Transition

scholarly journals Phase Transition Behavior of HPMC-AA and Preparation of HPMC-PAA Nanogels

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Risheng Yao ◽  
Jiajia Xu ◽  
Xihua Lu ◽  
Shengsong Deng
Keyword(s):  
Phase Transition ◽  
Driving Force ◽  
Hydroxypropyl Methylcellulose ◽  
Solution Temperature ◽  
Temperature Phase ◽  
Phase Transition Behavior ◽  
Critical Solution Temperature ◽  
Transmission Electron ◽  
Temperature Phase Transition ◽  
Redox Initiator

The lower critical solution temperature (LCST) of hydroxypropyl methylcellulose (HPMC) under mixing with acrylic acid (AA) monomer has been studied by turbidity measurements. It has been found that the LCST of the HPMC was drastically reduced from 60°C to 38°C with the increase of the concentration of AA, while the HPMC is kept at 0.5 wt%. The driving force shifting the LCST is attributed to the hydrogen bonding and hydrophobic interaction of the molecules. Then surfactant-free HPMC-PAA nanogels have been synthesized via the polymerization of AA monomer with the collapsed HPMC as a template or core at their LCST, using KPS and TEMED as redox initiator in the presence of BIS as cross-linking agent. HPMC-PAA nanogels have 50~150  nm diameters characterized by transmission electron microscope and dynamic light scattering. The HPMC-PAA nanogels exhibit the temperature phase transition behaviors, and these nanogels' volume phase transition temperature is close to the LCST of HPMC/AA system.

A polyelectrolyte-containing copolymer with a gas-switchable lower critical solution temperature-type phase transition

2019 ◽  
Vol 10 (2) ◽  
pp. 260-266 ◽  
Author(s):  
Jin-Jin Li ◽  
Yin-Ning Zhou ◽  
Zheng-Hong Luo ◽  
Shiping Zhu
Keyword(s):  
Phase Transition ◽  
Cloud Point ◽  
Lower Critical Solution Temperature ◽  
Solution Temperature ◽  
Critical Solution Temperature ◽  
Type Phase

A polyelectrolyte-containing copolymer with a CO2/N2-switchable cloud point, resulting from the gas-induced alternation of hydrophilicity, was prepared.

scholarly journals Unexpected LCST-type phase behaviour of a poly(vinyl thiazolium) polymer in acetone

RSC Advances ◽  
2016 ◽  
Vol 6 (62) ◽  
pp. 57117-57121 ◽  
Author(s):  
Konrad Grygiel ◽  
Weiyi Zhang ◽  
Christophe Detrembleur ◽  
Jiayin Yuan
Keyword(s):  
Phase Transition ◽  
Lower Critical Solution Temperature ◽  
Acetone Solution ◽  
Phase Behaviour ◽  
Solution Temperature ◽  
Critical Solution Temperature ◽  
Type Phase

A poly(vinyl thiazolium) polymer in acetone solution exhibited an unexpected lower critical solution temperature (LCST)-type phase transition.

scholarly journals Lower Critical Solution Temperature Phase Behavior of Natural Rubber/Polybutadiene Blend

2002 ◽  
Vol 34 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Seiichi Kawahara ◽  
Yasuhiro Asada ◽  
Yoshinobu Isono ◽  
Kiyoshige Muraoka ◽  
Yasuhisa Minagawa
Keyword(s):  
Natural Rubber ◽  
Phase Behavior ◽  
Lower Critical Solution Temperature ◽  
Solution Temperature ◽  
Temperature Phase ◽  
Critical Solution Temperature
Sign in / Sign up

Export Citation Format

Share Document