Reentrant phase transition of poly(N-isopropylacrylamide) gels in polymer solutions: Thermodynamic analysis

2002 ◽  
Vol 85 (4) ◽  
pp. 801-813 ◽  
Author(s):  
Nermin Gündogan ◽  
Oguz Okay
Keyword(s):  
Phase Transition ◽  
Thermodynamic Analysis ◽  
Polymer Solutions

Phase Transition in Polymer Solutions

1973 ◽  
Vol 242 (122) ◽  
pp. 143-144 ◽  
Author(s):  
N. SCHAMP ◽  
J. HUYLEBROECK
Keyword(s):  
Phase Transition ◽  
Polymer Solutions

Concentration boundary of the phase transition in polymer solutions

1980 ◽  
Vol 11 (5) ◽  
pp. 362-363
Author(s):  
A. I. Shamolin ◽  
V. L. Postoev ◽  
G. V. Bondarenko
Keyword(s):  
Phase Transition ◽  
Polymer Solutions ◽  
Concentration Boundary

Integration of molecular machines into supramolecular materials: actuation between equilibrium polymers and crystal-like gels

Nanoscale ◽  
2017 ◽  
Vol 9 (46) ◽  
pp. 18456-18466 ◽  
Author(s):  
Giacomo Mariani ◽  
Antoine Goujon ◽  
Emilie Moulin ◽  
Michel Rawiso ◽  
Nicolas Giuseppone ◽  
...  
Keyword(s):  
Phase Transition ◽  
Polymer Solutions ◽  
Molecular Machines ◽  
Supramolecular Polymer ◽  
Supramolecular Materials ◽  
Mechanical Bond ◽  
Equilibrium Polymers

A phase transition between equilibrium polymer solutions and crystal-like gels can be controlled by the pH nano-actuation of the mechanical bond of a rotaxane-based supramolecular polymer.

Novel porphyrin-labelled poly(N-isopropylacrylamides): syntheses from bromoalkyl-containing prepolymers and physicochemical properties

2000 ◽  
Vol 04 (06) ◽  
pp. 579-587 ◽  
Author(s):  
YURI S. AVLASEVICH ◽  
TIMOUR A. CHEVTCHOUK ◽  
VALERY N. KNYUKSHTO ◽  
OLEG G. KULINKOVICH ◽  
KONSTANTIN N. SOLOVYOV
Keyword(s):  
Phase Transition ◽  
Phase Separation ◽  
Physicochemical Properties ◽  
Absorption Spectra ◽  
Polymer Solutions ◽  
Soret Band ◽  
Water Soluble ◽  
Absorption Bands ◽  
Aqueous Polymer ◽  
Peak Intensity

Novel water-soluble tetraarylporphyrin-labelled polymers have been synthesized by the reaction of bromoalkyl-containing poly(N-isopropylacrylamides) with 5-(4-pyridyl)-10,15,20-tri(4-methoxyphenyl) porphyrin. Corresponding Zn -porphyrin-containing polymers have also been prepared. Phase transition diagrams show that aqueous polymer solutions exhibit phase separation upon heating. Absorption spectra of the porphyrin-labelled polymers have been recorded in water and organic solvents. It is found that the absorption bands in aqueous polymer solutions are broadened and shifted bathochromically, the peak intensity of the Soret band in the polymer spectra being strongly lowered in water. Fluorescence properties of the polymers are briefly reported.

Sign in / Sign up

Export Citation Format

Share Document