Preparation of upper critical solution temperature (UCST) responsive diblock copolymers bearing pendant ureido groups and their micelle formation behavior in water

Soft Matter ◽  
2015 ◽  
Vol 11 (26) ◽  
pp. 5204-5213 ◽  
Author(s):  
Ami Fujihara ◽  
Naohiko Shimada ◽  
Atsushi Maruyama ◽  
Kazuhiko Ishihara ◽  
Keita Nakai ◽  
...  
Keyword(s):  
Diblock Copolymer ◽  
Diblock Copolymers ◽  
Micelle Formation ◽  
Solution Temperature ◽  
Critical Solution Temperature ◽  
Upper Critical Solution Temperature ◽  
Formation Behavior

Ureido group-bearing methacrylate-type polymers show an upper critical solution temperature in water. We prepared a thermo-responsive diblock copolymer composed of a ureido group-bearing block.

Thermo-responsive metallo-supramolecular gels based on terpyridine end-functionalized amphiphilic diblock copolymers

2013 ◽  
Vol 1499 ◽  
Author(s):  
Jérémy Brassinne ◽  
Charles-André Fustin ◽  
Jean-François Gohy
Keyword(s):  
Mechanical Properties ◽  
Diblock Copolymer ◽  
Self Assembly ◽  
Micellar Solution ◽  
Diblock Copolymers ◽  
Solution Temperature ◽  
Selective Solvent ◽  
Critical Solution Temperature ◽  
Terpyridine Ligands ◽  
Amphiphilic Diblock Copolymers

ABSTRACTA thermo-responsive hydrogel was prepared on the basis of terpyridine endfunctionalized polystyrene-block-poly(N-isopropylacrylamide) diblock copolymer. As a first level of assembly, the copolymer was dissolved in a selective solvent to yield micelles bearing terpyridine ligands at the extremity of the coronal chains. The second level of self-assembly was triggered upon addition of metal ions to the micellar solution. Mechanical properties of the accordingly obtained micellar gel were finally characterized by rotational rheometry, below and above the lower critical solution temperature.

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)...

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