Results 291 to 300 of about 136,313 (321)

Crosslinking Kinetics: Partitioning According to Number of Crosslinks

Macromolecular Theory and Simulations, 2004
AbstractSummary: To mathematically describe crosslinking kinetics for polymers, we have proposed a novel method that accounts for the number of crosslinks, that is, partitioning according to number of crosslinks (PANC). By contrast, the well‐known method of numerical fractionation tracks generations of crosslinked molecules, defined to include a range ...
Benjamin J. McCoy, Rujun Li
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Radiation Crosslinking of Rubber. Yields of Hydrogen and Crosslinks

Rubber Chemistry and Technology, 1960
Abstract Purified natural rubber was irradiated in vacuo with a 4 MeV electron beam at dose rates of the order 10 6 –10 7 rad/min. The gas evolved comprised almost entirely hydrogen. The yield of carbon-carbon crosslinks was estimated from swelling data with corrections for the influence of the initial molecular weight of the rubber, chain fracture,
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Crosslinking in keratins. IV. Thermal cleavage of crosslinks

Journal of Applied Polymer Science, 1965
When wool is heated at 205°C. under silicone oil, it becomes progressively more soluble in 88% formic acid. This solubility is due almost exclusively to breakage of disulfide crosslinks. Assuming first-order crosslink cleavage, and using the methods of the first paper of this series, we establish the presence of two independent components.
G. Yee, Emory Menefee
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Crosslinking

2014
RESUMEN La etiopatogenia del queratocono tiene muchas incognitas por resolver. Sin embargo, la alteracion de la biomecanica corneal juega un papel clave en su aparicion. El crosslinking es una tecnica sencilla y segura que ha permitido enlentecer la progresion del queratocono, disminuyendo la necesidad de llegar a la queratoplastia.
Francisco Pastor Pascual, Cristina Peris Martínez, Ester Fernández López   +2 more
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A practical approach to crosslinking

Molecular Biology Reports, 1993
The various aspects of chemical crosslinking are addressed. Crosslinker reactivity, specificity, spacer arm length and solubility characteristics are detailed. Considerations for choosing one of these crosslinkers for a particular application are given as well as reaction conditions and practical tips for use of each category of crosslinkers.
S Desai, G Nielander, G Mattson, E Conklin, M D Savage, S Morgensen   +5 more
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Crosslinking and Self-Crosslinking in Keratin Fibers

1977
In recent years much attention has been directed toward the elucidation of a variety of bonds and interactions that exist between the protein molecules in wool fibers. It is argued that these forces are responsible for maintaining the stable structure of the fiber and that many of its mechanical and chemical properties can be explained by them.
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Crosslinking of Latex Rubber

Science, 1956
Abstract Most of the properties of rubber are consistent with those expected of a high- molecular-weight linear polymer of isoprene. However, there are some features of its behavior that are inexplicable on this basis. They must be the result of the presence of small amounts of structures other than the regular head-to-tail chain of ...
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Crosslinking Agents

2013
The rheology of hydroxypropyl guar is greatly complicated by the crosslinking reactions with titanium ions. Studies to better understand the rheology of the reaction of hydroxypropyl guar with titanium chelates and how the rheology depends on the residence time, shear history, and chemical composition have been performed.
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Crosslinking of collagen with dendrimers

Journal of Biomedical Materials Research Part A, 2005
AbstractPolypropyleneimine octaamine dendrimers were studied as an alternative means of generating highly crosslinked collagen. Crosslinking was effected by using the water‐soluble carbodiimide 1‐ethyl‐3‐(3‐dimethyl aminopropyl) carbodiimide hydrochloride (EDC).
X. Duan, Heather Sheardown
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Crosslinking of uteroglobin by transglutaminase

Biochemical and Biophysical Research Communications, 1984
Uteroglobin, a progesterone induced, pregnancy related protein, can be incorporated into higher molecular weight proteins by human placental Factor XIIIa. This process is time dependent, requires CaCl2 and can be inhibited by the addition of polylysine, dansylcadavarine or histamine. Crosslinking of uteroglobin into higher molecular weight proteins can
Anil B. Mukherjee, Ramanathapuram Manjunath, Soo Il Chung   +2 more
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