Hydrogen bonding reinforcement as a strategy to improve upper critical solution temperature of poly(N-acryloylglycinamide-co-methacrylic acid)

2018 ◽  
Vol 9 (26) ◽  
pp. 3667-3673 ◽  
Author(s):  
Wenhui Sun ◽  
Zesheng An ◽  
Peiyi Wu
Keyword(s):  
Hydrogen Bonding ◽  
Methacrylic Acid ◽  
Solution Temperature ◽  
Core Shell ◽  
Critical Solution Temperature ◽  
Upper Critical Solution Temperature

HB-type copolymers with suitably tunable UCST and corresponding core–shell nanogels showing UCST–LCST type behavior.

Selective Hydrogen Bonding Controls Temperature Response of Layer-by-Layer Upper Critical Solution Temperature Micellar Assemblies

Soft Matter ◽  
2021 ◽  
Author(s):  
Aliaksei Aliakseyeu ◽  
Victoria Albright ◽  
Danielle Yarbrough ◽  
Samantha Hernandez ◽  
Qing Zhou ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Methacrylic Acid ◽  
Temperature Response ◽  
Solution Temperature ◽  
Layer By Layer ◽  
Critical Solution Temperature ◽  
Hydrogen Bonding Interactions ◽  
Upper Critical Solution Temperature ◽  
Lbl Films

This work establishes a correlation between the selectivity of hydrogen-bonding interactions and the functionality of micelle-containing layer-by-layer (LbL) assemblies. Specifically, we explore LbL films formed by assembly of poly(methacrylic acid)...

scholarly journals Эффект формы при расслаивании твердых растворов в малом объеме на примере сплава Bi--Sb

2018 ◽  
Vol 60 (7) ◽  
pp. 1382
Author(s):  
В.Б. Федосеев ◽  
А.В. Шишулин
Keyword(s):  
Thermodynamic Stability ◽  
Spherical Shape ◽  
Solution Temperature ◽  
Core Shell ◽  
Critical Solution Temperature ◽  
The Core ◽  
Alloy Particles ◽  
Upper Critical Solution Temperature ◽  
Interphase Boundaries ◽  
Shape Changes

AbstractThe regularities of the effect of the shape of interphase boundaries in small volume systems on the separation of solutions with an upper critical solution temperature (UCST) are described by the example of Bi–Sb alloy particles with a core–shell configuration. The change in the shape of interphase boundaries is simulated in general by introducing a parameter corresponding to the degree of deviation of the shape of the boundaries from the spherical one. An analysis of the extrema of the Gibbs function revealed regularities in the effect of the shape of the core and shell phases on phase equilibria, the thermodynamic stability of heterogeneous states, and the phase separation diagram. The deviation of the shape of the interphase boundaries from the spherical shape changes the UCST and the mutual solubility of the components. The deformation of the shell of a core–shell particle increases the thermodynamic stability of the heterogeneous state, which contributes to the separation of the solution. The deformation of the core lowers the thermodynamic stability of the heterogeneous state and expands the range of metastable states.

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