Results 41 to 50 of about 184,958 (184)

Poly(thioether) vitrimers via transalkylation of trialkylsulfonium salts [PDF]

, 2017
Vitrimers are permanently cross-linked organic polymers that can be reshaped, molded, and recycled without loss of network integrity. Herein, we report poly(thioether) networks, prepared through a straightforward thiol-ene photopolymerization, that can ...
Hendriks, Benjamin, Waelkens, Jelle, Winne, Johan, Du Prez, Filip   +3 more
core   +1 more source

How does Cross-Linking Effect the Thermal Stability of Polyisoprene [PDF]

, 2000
Polyisoprene can be cross-linked by an initial lithiation followed by reaction with both monochloro compounds and dichloro compounds. The monochloro compounds effect crosslinking through a lithium-chlorine exchange route while the use of dichloro ...
Wilkie, Charles A., Yao, Qiang
core   +1 more source

Liesegang patterns: Effect of dissociation of the invading electrolyte

, 1998
The effect of dissociation of the invading electrolyte on the formation of Liesegang bands is investigated. We find, using organic compounds with known dissociation constants, that the spacing coefficient, 1+p, that characterizes the position of the n-th
Antal T., Chopard B., Dee G. T., Dhar N. R., Feeney R., Flicker M., Gálfi L., Henisch H. K., Jablczynski K., Kai S., Liesegang R. E., Matalon R., Morse W., Ostwald W., Packter A., Prager S., Shinohara S., Smith D. A., Venzl G., Wagner C., Zeldovitch Ya. B., Zrinyi M.   +21 more
core   +1 more source

Cross-linking da cornea: protocolo padrão

Revista Brasileira de Oftalmologia
RESUMO O objetivo desta revisão é de determinar as indicações e eficácia da cirurgia que promove novas ligações covalentes entre as fibras de colágeno da córnea, conhecida como Cross-Linking (CXL), assim como esclarecer seus objetivos. O ceratocone é uma
Marcony R. Santhiago
doaj   +1 more source

Microwave-enhanced synthesis of biodegradable multifunctional chitosan hydrogels for wastewater treatment [PDF]

, 2017
Chitosan, a derivative of chitin, is a biodegradable polymer known of its favorable properties, applicable in medicine and industry. Commonly obtained chitosan hydrogels are of various swelling capacity, and may bind only anions losing their ...
Janus, Łukasz, Piątkowski, Marek, Raclavský, Konstantin, Radwan-Pragłowska, Julia   +3 more
core   +1 more source

PECAM-1 engagement counteracts ICAM-1-induced signaling in brain vascular endothelial cells [PDF]

, 2007
Interactions between leukocytes and vascular endothelial cells are mediated by a complex set of membrane adhesion molecules which transduce bi-directional signals in both cell types.
Adamson, Barreiro, Barreiro, Butcher, Carman, Carman, Carson, Celli, Christine Rampon, Cicmil, Doulet, Durieu-Trautmann, Engelhardt, Etienne, Etienne, Etienne-Manneville, Federici, Gopalakrishnan, Graesser, Gratzinger, Greenwood, Greenwood, Henshall, Hoffmann, Ilan, Jackson, Jean-Pierre Couty, John Greenwood, Kontaridis, Lacalle, Marie-Pierre Laran-Chich, Masuda, Mathilde Leveque, Millan, Muller, Newman, Newman, Patil, Pierre-Olivier Couraud, Pluskota, Reid, Rivard, Roux, Sander, Sandrine Bourdoulous, Schenkel, Schoenwaelder, Schweitzer, Shaw, Viegas, Walters, Wang, Yang, Yang   +53 more
core   +2 more sources

The Efficiency of Polyester-Polysulfone Membranes, Coated with Crosslinked PVA Layers, in the Water Desalination by Pervaporation

Membranes
Composite polymer membranes were obtained using the so-called dry phase inversion and were used for desalination of diluted saline water solutions by pervaporation (PV) method.
Izabela Gortat, Jerzy J. Chruściel, Joanna Marszałek, Renata Żyłła, Paweł Wawrzyniak   +4 more
doaj   +1 more source

Hyaluronic Acid Functionalization with Jeffamine^® M2005: A Comparison of the Thermo-Responsiveness Properties of the Hydrogel Obtained through Two Different Synthesis Routes

Gels, 2021
Hyaluronic acid (HA) of different molar masses (respectively 38,000, 140,000 and 1,200,000 g.mol−1) have been functionalized with a commercial poly(etheramine), Jeffamine® M2005, in order to devise physical thermo-responsive hydrogels.
Mathieu Madau, Didier Le Cerf, Virginie Dulong, Luc Picton   +3 more
doaj   +1 more source

Supramolecular Thermo Aero-able Gelators (STAGs) for synthesis of hydrogels

, 2012
Supramolecular Thermo Aero-able Gelators (STAGs): tartaric acid, urea, and guanidine with amide and imine moieties as supramolecular synthons are introduced to cross-link and aerate ('aero-able') polyacrylate networks for synthesis of hydrogels. They are
Atharva Sahasrabudhe, Dan Dan Yuan, Dianyu Chen, Feng Feng Xue, Peng Wang, Rongxin Yuan, Soumyajit Roy, Subharanjan Biswas, Xiao-Yan Tang   +8 more
core   +1 more source

Gelation and Cryogelation of Chitosan: Origin of Low Efficiency of Diglycidyl Ethers as Cross-Linkers in Acetic Acid Solutions

Polysaccharides
Although diglycidyl ethers of glycols (DEs)—FDA-approved reagents for biomedical applications—were considered unsuitable for the fabrication of chitosan (CH) hydrogels and cryogels, we have recently shown that CH cross-linking with DEs is possible, but ...
Yuliya Privar, Anna Skatova, Alexey Golikov, Andrey Boroda, Svetlana Bratskaya   +4 more
doaj   +1 more source