Results 51 to 60 of about 140,922 (183)

Lithium Salt Dissociation in Diblock Copolymer Electrolyte Using Fourier Transform Infrared Spectroscopy

open access: yesFrontiers in Energy Research, 2020
Polymer electrolytes are important materials in the manufacture of all-solid-state batteries due to their ionic conductivity, achieved by doping the polymer with salt, and mechanical strength, achieved by use of a block copolymer with a rigid block. High
Kyoungmin Kim   +5 more
doaj   +1 more source

Comparing blends and blocks: Synthesis of partially fluorinated diblock polythiophene copolymers to investigate the thermal stability of optical and morphological properties

open access: yesBeilstein Journal of Organic Chemistry, 2016
The microstructure of the active blend layer has been shown to be a critically important factor in the performance of organic solar devices. Block copolymers provide a potentially interesting avenue for controlling this active layer microstructure in ...
Pierre Boufflet   +5 more
doaj   +1 more source

Structure of nanoparticles embedded in micellar polycrystals

open access: yes, 2012
We investigate by scattering techniques the structure of water-based soft composite materials comprising a crystal made of Pluronic block-copolymer micelles arranged in a face-centered cubic lattice and a small amount (at most 2% by volume) of silica ...
Alexandridis P.   +47 more
core   +3 more sources

Novel fluorescent amphiphilic block copolymers: photophysics behavior and interactions with DNA

open access: yeseXPRESS Polymer Letters, 2007
In this study, novel amphiphilic fluorescent copolymers poly(N-vinylpyrrolidone)-b-poly(N-methacryloyl-N'-(α-naphthyl)thiourea) (PVP-b-PNT) were synthesized via ATRP with poly(N-vinylpyrrolidone)-Cl as macroinitiator and N-methacryloyl-N'-α ...
doaj   +1 more source

Graft Copolymerization of Methacrylic Acid, Acrylic Acid and Methyl Acrylate onto Styrene–Butadiene Block Copolymer [PDF]

open access: yes, 1998
Methyl acrylate, methacrylic acid, and acrylic acid have been graft copolymerized onto styrene–butadiene block copolymer. All three monomers react through the macroradical interacting with the double bond of butadiene.
Jiang, David D., Wilkie, Charles
core   +1 more source

Temperature-modulated separation of vascular cells using thermoresponsive-anionic block copolymer-modified glass

open access: yesRegenerative Therapy
Introduction: Vascular tissue engineering is a key technology in the field of regenerative medicine. In tissue engineering, the separation of vascular cells without cell modification is required, as cell modifications affect the intrinsic properties of ...
Tadashi Hirotani, Kenichi Nagase
doaj   +1 more source

Non-native three-dimensional block copolymer morphologies

open access: yesNature Communications, 2016
Molecules can self-assemble to form ordered phases with defined shape and periodicity, but there are a limited set of morphologies reported. Here, the authors have manipulated block copolymer thin films via an iterative assembly process to form a diverse
Atikur Rahman   +4 more
doaj   +1 more source

Superior antibacterial surfaces using hydrophilic, poly(MPC) and poly(mOEGMA) free chains of amphiphilic block copolymer for sustainable use

open access: yesHeliyon
Surface modification of electrically neutral hydrophilic polymers is one of the most promising methods for preventing biofouling and biological contamination by proteins and bacteria. Surface modification of inorganic materials such as silica-based glass
Tsukuru Masuda   +5 more
doaj   +1 more source

Synthesis of Well-Controlled Nanogels via Block Copolymer Self-Assembly: A Systematic Characterization of the Properties and Potential Applications [PDF]

open access: yes, 2013
In the United States there is a growing need for materials that can probe and fight diseases of the heart, brain, and body as a whole. In this study nanogels, block copolymers, and copolymers were synthesized using solution polymerization and directed ...
Uhlir, Christina
core   +4 more sources

Effect of polymer concentration and length of hydrophobic end block on the unimer-micelle transition broadness in amphiphilic ABA symmetric triblock copolymer solutions [PDF]

open access: yes, 2013
The effects of the length of each hydrophobic end block N_{st} and polymer concentration \bar{\phi}_{P} on the transition broadness in amphiphilic ABA symmetric triblock copolymer solutions are studied using the self-consistent field lattice model.
Han, X. -G., Ma, Y. -H., Ouyang, S. -L.
core   +2 more sources

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