Results 141 to 150 of about 50,243 (307)

Long‐Term Hydrophilic, Anti‐Clotting, and Anti‐Fibrotic Dynamic Covalent Silicone‐Based Biomaterials

Advanced Healthcare Materials, EarlyView.
Dynamic covalent crosslinking of a Schiff‐base silicone elastomer with hydrazide‐functionalized polymers is demonstrated to improve the long‐term hydrophilicity as well as the anti‐fouling and anti‐clotting properties of PDMS implants. The hydrazone‐functionalized material prevents hydrophobic recovery, resists clotting, and significantly reduces ...
Norma A. Garza Flores, Eva Mueller, Robert Bui, James C. Fredenburgh, Ruiqi Yin, Rawaa Hussain, Rida A. Malik, Thomas Kalab, Dabeer Abdul‐Azeez, Fei Xu, Michael Brook, Jeffrey I. Weitz, Todd Hoare   +12 more
wiley   +1 more source

Rare earth dialkyl cations and monoalkyl dications supported by a rigid neutral pincer ligand: synthesis and ethylene polymerization. [PDF]

Chem Sci, 2023
Vasanthakumar A, Price JS, Emslie DJH.
europepmc   +1 more source

Ethylene polymerization and polyethylene functionalization

Polyolefins have become ubiquitous and are large volume commodity materials. Of current interest is the preparation of speciality polymers incorporating polyethylene (PE), which often requires polymer chain-end manipulation.
Marín Càmara, Ariadna
core  

Kinetics of Ethylene Polymerization by Coprecipitated TiCl4/MgCl2THF Catalyst

, 1989
High activity ethylene polymerization catalysts have been prepared by the reaction of magnesium chloride with titanium tetrachloride in tetrahydrofuran. followed by precipitation with excess n-hexane.
김일, 우성일, 한종대
core  

Microgel‐Based 3D Bioprinting: A Convergent Strategy Integrating Material Design, Jamming Dynamics, and Biological Function

Advanced Healthcare Materials, EarlyView.
Microgel‐based 3D printed constructs represent a compelling and versatile innovation for engineering architecturally complex, dynamically remodelable, and biocompatible structures with high structural fidelity and bioactivity. By integrating material design, biofabrication, and biological function, these systems enable the development of adaptive ...
Elena Ghighină, Andreea Ioana Dinu, Jana Ghițman   +2 more
wiley   +1 more source

POLYMERIZATION OF VINYL ACETATE IN THE PRESENCE OF POLYLACTIDE-POLY(ETHYLENE GLYCOL) BLOCK-COPOLYMERS

Cifra: Химия
This paper presents data on the polymerization of vinyl acetate in emulsions stabilized with biodegradable water-insoluble linear polylactide-poly(ethylene glycol) block-copolymers.
Gomzyak V.I., Kuznetsov P.M., Nechaev I.I., Ovsyannikov A.D., Pronyushkin P.I., Gritskova I.A.   +5 more
doaj   +1 more source

Heterogeneity in the Fragmentation of Ziegler Catalyst Particles during Ethylene Polymerization Quantified by X-ray Nanotomography. [PDF]

JACS Au, 2021
Bossers KW, Valadian R, Garrevoet J, van Malderen S, Chan R, Friederichs N, Severn J, Wilbers A, Zanoni S, Jongkind MK, Weckhuysen BM, Meirer F.   +11 more
europepmc   +1 more source

Direct Synthesis of Ethylene-Acrylic Acid Copolymers by Insertion Polymerization

, 2010
Neutral palladium(II) phosphinesulfonato polymerization catalysts were found to be stable toward carboxylic acid moieties and to enable direct linear copolymerization of ethylene with acrylic acid ...
Rünzi, Thomas, Thomas Rünzi, Dominik Fröhlich, Mecking, Stefan, Fröhlich, Dominik, Stefan Mecking   +5 more
core   +1 more source

Fructose‐Based Single‐Chain Polymer Nanoparticles for GLUT1–Mediated Delivery: Impact of Polymer Design on Uptake and In Vivo Performance

Advanced Healthcare Materials, EarlyView.
Single‐chain nanoparticles have been proposed as drug delivery carriers, but adding a tail can significantly enhance their performance. This was demonstrated using a tadpole‐like structure comprising a head prepared from a UV‐crosslinked fructose‐based glycopolymer capable of targeting GLUT receptors, combined with a PEG‐based tail. Compared with other
Hoang Yen Vo, Linqing Tian, Qiaoyun Wang, Evelyn Szabo, Rebecca Y. Lai, Fariba Dehghani, Martina H. Stenzel   +6 more
wiley   +1 more source

Study on the rheology behavior of hydrophobically modified poly (acrylic acid) in ethylene glycol-water mixture

工程科学与技术, 2009
: Hydrophobically modified polyacrylic acids (HMPA) was synthesized by precipitation polymerization. HMPA in ethylene glycol-water mixture show typical shear thinning behavior. It was found that the solvent have a direct impact on the rheology behavior
Mei Yongjun, 周洪, 王航
doaj