Results 71 to 80 of about 114,151 (273)

Crystallization of random copolymers [PDF]

open access: yesJournal of Research of the National Bureau of Standards Section A: Physics and Chemistry, 1973
A theory of crystallization is formulated for random copolymers which crystallize with the non-crystallizable co-units incorporated into the crystalline lattice as defects. The appropriate melting point equation and other associated thermodynamic properties are derived for this model as a function of crystal thickness and comonomer concentration.
Isaac C. Sanchez, R.K. Eby
openaire   +2 more sources

Wetting of Surface Grafted Hydrophilic‐b‐Hydrophobic Block Copolymer Brushes

open access: yesAdvanced Functional Materials, EarlyView.
The wetting properties of surface grafted diblock copolymer brushes are influenced by the thickness of the hydrophilic bottom block and the hydrophobic top block. The surface adapts in presence of water and the contact angles of the bottom block shine through. Abstract The wetting of diblock copolymer brushes by water is studied.
Benjamin Leibauer   +7 more
wiley   +1 more source

Thermosensitive hydrogel for in situ-controlled methotrexate delivery

open access: yese-Polymers, 2021
MTX is loaded and released in a controlled manner over 14 h, under physiological conditions, from an amphiphilic triblock copolymer with a sol–gel phase change at 36.5°C.
Carrillo-Castillo Teresa Darlen   +3 more
doaj   +1 more source

Localization transition for a copolymer in an emulsion [PDF]

open access: yesarXiv, 2005
In this paper we study a two-dimensional directed self-avoiding walk model of a random copolymer in a random emulsion.
arxiv  

Chiral Engineered Biomaterials: New Frontiers in Cellular Fate Regulation for Regenerative Medicine

open access: yesAdvanced Functional Materials, EarlyView.
Chiral engineered biomaterials can selectively influence cell behaviors in regenerative medicine. This review covers chiral engineered biomaterials in terms of their fabrication methods, cellular response mechanisms, and applications in directing stem cell differentiation and tissue function.
Yuwen Wang   +5 more
wiley   +1 more source

Experimental Studies of the Jamming Behaviour of Triblock Copolymer Solutions and Triblock Copolymer-Anionic Surfactant Mixture [PDF]

open access: yesEPJE 34, 103 (2011) [Topical Issue on the Physics of Glasses, ed. by M Falk, T Egami and S Sastry], 2010
Photon correlation spectroscopy and rheological measurements are performed to investigate the microscopic dynamics and mechanical responses of aqueous solutions of triblock copolymers and aqueous mixtures of triblock copolymers and anionic surfactants.
arxiv  

A Gym for Cells—Direct Laser Writing of Magnetic Multilayered Micro Actuators for Mechanical Stimulation of Cells

open access: yesAdvanced Functional Materials, EarlyView.
Surface‐attached multilayer micromagnet systems are fabricated by two‐photon crosslinking. The pillar‐shaped micro actuators consist of a soft and flexible surface‐attached cell‐repellent hydrogel layer at the bottom, acting as a hinge and a cell‐adhesive hydrophobic polymer filled with magnetic nanoparticles.
Nicolas Geid   +5 more
wiley   +1 more source

Proton conductive membranes based on poly (styrene-co-allyl alcohol) semi-IPN

open access: yesPolímeros, 2014
The optimization of fuel cell materials, particularly polymer membranes, for PEMFC has driven the development of methods and alternatives to achieve systems with more adequate properties to this application.
Felipe Augusto Moro Loureiro   +4 more
doaj   +1 more source

Polymer-Encased Nanodiscs and Polymer Nanodiscs: New Platforms for Membrane Protein Research and Applications

open access: yesFrontiers in Bioengineering and Biotechnology, 2020
Membrane proteins (MPs) are essential to many organisms’ major functions. They are notorious for being difficult to isolate and study, and mimicking native conditions for studies in vitro has proved to be a challenge.
Angela Chen   +4 more
doaj   +1 more source

Stable Radical Polymers as New Electroactive Materials: Synthesis, Properties, and Emerging Applications

open access: yesAdvanced Functional Materials, EarlyView.
This review covers the recent advances in the synthesis and properties of stable radical polymers (SRPs) and presents their applications in electronics, magnetics, optoelectronics, and biomedicines. The review concludes with a discussion of the challenges in radical chemistry and functionalization, while shedding light on the groundbreaking potential ...
Yufeng Xiong   +11 more
wiley   +1 more source

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