Results 51 to 60 of about 2,588 (196)

Crystalline Poly(L‐Lactic Acid) Nanoparticles via Nonsolvent‐Induced Cascade Phase Separation

Journal of Polymer Science, EarlyView.
Water is used as the nonsolvent to induce liquid/liquid phase separation (LLPS) of poly(L‐lactic acid) (PLLA)/propylene carbonate solution and PLLA crystallization. Due to the two levels of cascade LLPS coupled with confined PLLA crystallization, three types of polymeric nanoparticles, including PLLA single crystals, Ouzo crystalsomes, and sheaf‐like ...
Niloofar Esmati, Shichen Yu, Carl T. Furner, Christopher Y. Li   +3 more
wiley   +1 more source

Highly Ordered Polypeptide with UCST Phase Separation Behavior

, 2019
Manipulating phase separation structures of thermoresponsive polymers will enhance the usefulness of structure-controllable materials in fields such as drug delivery and tissue engineering. However, behaviors of upper critical solution temperature (UCST)
Kazuo Sakurai (1755190), Naohiko Shimada, Shota Fujii (1421332), Naohiko Shimada (1959886), Tadaomi Furuta (160121), Atsushi Harada (1553569), Atsushi Maruyama, Tadaomi Furuta, Sotaro Kuroyanagi, Kazuo Sakurai, Atsushi Maruyama (670527), Shota Fujii, Sotaro Kuroyanagi (3341795), Atsushi Harada   +13 more
core   +1 more source

Hierarchical Reaction‐Induced Phase Separation in Epoxy/Oligomeric Poly(phenylene ether) Blends: Multiscale Structural and Mechanical Heterogeneity

Journal of Polymer Science, EarlyView.
Hierarchical morphology does not always improve toughness. In epoxy/oPPE blends, curing creates oPPE‐rich primary domains containing nanoscale secondary heterogeneity, as revealed by microscopy, X‐ray scattering, and AFM nanomechanics. Fracture observations show that primary domain–matrix interfacial separation limits tensile ductility despite the ...
Shoko Mishima, Yoshiaki Kawagoe, Yuki Takayama, Tomonaga Okabe   +3 more
wiley   +1 more source

Cononsolvency‐Assisted Fabrication of Hydrogels and Microgels With Tunable Porosity, Diffusivity and Stiffness

Macromolecular Rapid Communications, Volume 47, Issue 21, 6 November 2026.
The cononsolvency of poly(dimethyl acrylamide‐co‐hydroxyethyl acrylamide) copolymers in water‐acetonitrile mixtures enables the synthesis of hydrogels with finely tuned porosity. Optimized for droplet‐based microfluidics, this approach facilitates the fabrication of porous microgels with tunable mechanical and diffusion properties, offering precise ...
Maria I. Pieper, Daniel D. Stöbener, Bernhard Häßel, Richard Hoogenboom, Andrij Pich   +4 more
wiley   +1 more source

The crucial role of macromolecular engineering, drug encapsulation and dilution on the thermoresponsiveness of UCST diblock copolymer nanoparticles used for hyperthermia

, 2019
International audiencePoly(acrylamide-co-acrylonitrile) (P(AAm-co-AN)), an upper critical solution temperature (UCST)-type copo-lymer in water, was synthesized by reversible addition fragmentation chain transfer (RAFT) copolymerization and used as a ...
Boissenot, Tanguy, Manerlax, Katia, Chraït, Imen, Ben, Nicolas, Julien, Soliman, Nancy, Bordat, Alexandre, Yagoubi, Najet, Tsapis, Nicolas   +7 more
core   +1 more source

Exploring poly(ethylene glycol)-polyzwitterion diblock copolymers as biocompatible smart macrosurfactants featuring UCST-phase behavior in normal saline solution

, 2022
Art. 325, 22 S.Nonionic-zwitterionic diblock copolymers are designed to feature a coil-to-globule collapse transition with an upper critical solution temperature (UCST) in aqueous media, including physiological saline solution.
Schönemann, Eric, Nizardo, Noverra M., Laschewsky, Andre, Schanzenbach, Dirk   +3 more
core   +2 more sources

Polymer Gel-Liquid Equilibria Using Uniface-FV [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 1992
Based on Gibbs-Duhem law and using UNIFAC-FV computer algorithm, the activity of polymer component in polymer-solvent systems is determined. The variation of activity of components with concentration at different temperatures are used to find the ...
Hamid Modarress, Ali Eliassi
doaj  

Thermoresponsive Ionic Liquid/Water Mixtures: From Nanostructuring to Phase Separation

Molecules, 2022
The thermodynamics, structures, and applications of thermoresponsive systems, consisting primarily of water solutions of organic salts, are reviewed. The focus is on organic salts of low melting temperatures, belonging to the ionic liquid (IL) family ...
Nancy C. Forero-Martinez, Robinson Cortes-Huerto, Antonio Benedetto, Pietro Ballone   +3 more
doaj   +1 more source

Degradable Ureido-Polycarbonate Block Copolymers with a Complex UCST Thermoresponse. [PDF]

Macromol Rapid Commun
Abstract In this work, amphiphilic block copolymers (BCs) consisting of a hydrophilic poly(ethylene glycol) methyl ether (PEG) and a degradable polycarbonate block derived from 2,2‐bis(hydroxymethyl)propionic acid (bis‐MPA) with pendant ureido units, along with corresponding homopolycarbonates are described.
Martin-Martin J, Abad M, Lopez de Pariza X, Ezquerra TA, Nogales A, Sardon H, Sebastián V, Oriol L, Piñol M.   +8 more
europepmc   +5 more sources

Well-Defined Uncharged Polymers with a Sharp UCST in Water and in Physiological Milieu

, 2016
Well-Defined Uncharged Polymers with a Sharp UCST in Water and in Physiological ...
André Laschewsky (1538773), Stefan Glatzel (2061622), Jean-François Lutz (1506877)   +2 more
core   +1 more source