نتایج جستجو برای: grafted copolymer

تعداد نتایج: 22029  

2014
Jin Ran Liang Wu Bing Wei Yaoyao Chen Tongwen Xu

Polymeric materials as anion exchange membranes (AEMs) play an essential role in the field of energy and environment. The achievement of high performance AEMs by the precise manipulation of macromolecular architecture remains a daunting challenge. Herein, we firstly report a novel rod-coil graft copolymer AEM, possessing rigid hydrophobic main chains and soft hydrophilic graft chains. The low g...

2010
Panagiotis E. Theodorakis Wolfgang Paul Kurt Binder

Conformations of a bottle-brush polymer with two types (A,B) of grafted side chains are studied bymolecular dynamics simulations, using a coarse-grained bead-springmodel with side chains of up to N = 50 effective monomers. Varying the solvent quality and the grafting density, the crossover from the “pearl-necklace” structure to dense cylinders is studied. Whereas for small grafting density, Aan...

2017
Denial Mahata Malabendu Jana Arundhuti Jana Abhishek Mukherjee Nibendu Mondal Tilak Saha Subhajit Sen Golok B. Nando Chinmay K. Mukhopadhyay Ranadhir Chakraborty Santi M. Mandal

Lignin, one of the most abundant renewable feedstock, is used to develop a biocompatible hydrogel as anti-infective ointment. A hydrophilic polyoxazoline chain is grafted through ring opening polymerization, possess homogeneous spherical nanoparticles of 10-15 nm. The copolymer was covalently modified with triazole moiety to fortify the antimicrobial and antibiofilm activities. The hydrogel was...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2009
Xiang Gao Norbert Kucerka Mu-Ping Nieh John Katsaras Shiping Zhu John L Brash Heather Sheardown

The thermoresponsive PEG-based copolymer poly[2-(2-methoxyethoxy)ethyl methacrylate-co-oligo(ethylene glycol) methacrylate) (P(MEO(2)MA-co-OEGMA)] was grafted onto a silicon wafer, and its chain conformation in aqueous solution was studied by neutron reflectometry. The effects of temperature and salt concentration on the polymer's conformation were evaluated. With increasing temperature, it was...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2004
Geoffrey D Moeser William H Green Paul E Laibinis Per Linse T Alan Hatton

Small-angle neutron scattering and mean-field lattice modeling were used to characterize a class of water-based magnetic fluids tailored specifically to extract soluble organic compounds from water. The fluids consist of a suspension of approximately 7 nm magnetite (Fe3O4) nanoparticles coated with a bifunctional polymer layer comprised of an outer hydrophilic poly(ethylene oxide) (PEO) region ...

Journal: :The journal of physical chemistry. C, Nanomaterials and interfaces 2010
Lyudmila M Bronstein Eleonora V Shtykova Andrey Malyutin Jason C Dyke Emily Gunn Xinfeng Gao Barry Stein Peter V Konarev Bogdan Dragnea Dmitri I Svergun

Iron oxide nanoparticles (NPs) with a diameter 21.6 nm were coated with poly(maleic acid-alt-1-octadecene) (PMAcOD) modified with grafted 5,000 Da poly(ethyelene glycol) (PEG) or short ethylene glycol (EG) tails. The coating procedure utilizes hydrophobic interactions of octadecene and oleic acid tails, while the hydrolysis of maleic anhydride moieties as well as the presence of hydrophilic PEG...

2010
Agata M. Brzozowska Arie de Keizer Willem Norde Christophe Detrembleur Martien A. Cohen Stuart

We have studied the formation and the stability of grafted block complex coacervate core micelles (C3Ms) in solution and the influence of grafted block C3M coatings on the adsorption of the proteins beta-lactoglobulin, bovine serum albumin, and lysozyme. The C3Ms consist of a grafted block copolymer PAA(21)-b-PAPEO(14) (poly(acrylic acid)-b-poly(acrylate methoxy poly(ethylene oxide)), with a ne...

Journal: :International Journal of Applied Pharmaceutics 2023

Objective: Capsaicin (CAP) is a naturally occurring alkaloid forecasted in the treatment of Alcoholic Hepatitis (AH), but least studied due to its hydrophobicity and low bioavailability. Hence, present study aimed optimize parameters for synthesis stearic acid grafted chitosan (CS-g-SA) copolymer preparation CAP-loaded CS-g-SA micelles. Methods: Quality by design (QbD) approach coordination wit...

Journal: :Materials advances 2023

Fabrication of flexible, low-cost, lightweight supercapacitors is in great demand for flexible electronics used various applications.

Journal: :Biomacromolecules 2009
Siqi Li Erin N Davis Jordan Anderson Qiao Lin Qian Wang

We have previously presented a microelectromechanical system (MEMS) based viscometric sensor for continuous glucose monitoring using protein Concanavalin A (Con A). To address its drawbacks, including immunotoxicity and instability issues, we have synthesized stable, biocompatible copolymers poly(acrylamide-ran-3-acrylamidophenylboronic acid) (PAA-ran-PAAPBA) for viscosity based glucose sensing...

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