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Geopolymer depolymerization index
Vibrational Spectroscopy, 2016Glass-like behavior of the geopolymer samples have been investigated by determination of the influence of the geopolymerization reaction equilibrium on the types of SiO4 tetrahedra polymerization present. In order to manipulate geopolymerization reaction equilibrium, aluminum and sodium content in the samples was varied.
Kosor, Tihomir +2 more
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Insertion metathesis depolymerization
Polymer Chemistry, 2013We have successfully depolymerized polybutadiene via an insertion metathesis mechanism. This new concept involves the irreversible depolymerization of unsaturated polymers with electron deficient olefins. The product of the degradation was characterized by NMR and GC-MS. We also explored the use of copper iodide as an additive.
Michael D. Schulz +2 more
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Towards Quantitative Catalytic Lignin Depolymerization
Chemistry – A European Journal, 2011AbstractThe products of base‐catalyzed liquid‐phase hydrolysis of lignin depend markedly on the operating conditions. By varying temperature, pressure, catalyst concentration, and residence time, the yield of monomers and oligomers from depolymerized lignin can be adjusted. It is shown that monomers of phenolic derivatives are the only primary products
Virginia M, Roberts +5 more
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How calcium causes microtubule depolymerization
Cell Motility and the Cytoskeleton, 1997The effects of calcium (Ca) were assessed using video-enhanced differential interference contrast light microscopy on individual microtubules in vitro. Phosphocellulose-purified (PC) and microtubule associated protein (MAP)-containing preparations of porcine brain tubulin were assembled in a flow chamber onto sperm axoneme fragments and the pattern of ...
E T, O'Brien, E D, Salmon, H P, Erickson
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2000
Unlike other actin-binding proteins, actin depolymerizing factor (ADF) binds to both filamentous and globular actin, and causes the rapid depolymerization of actin filaments. ADF localizes to sites of active actin dynamics, including growing maize root hairs.
David R. Kovar, Christopher J. Staiger
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Unlike other actin-binding proteins, actin depolymerizing factor (ADF) binds to both filamentous and globular actin, and causes the rapid depolymerization of actin filaments. ADF localizes to sites of active actin dynamics, including growing maize root hairs.
David R. Kovar, Christopher J. Staiger
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Lignin-depolymerizing activity of Streptomyces
1988Publisher Summary This chapter describes a simple spectrophotometric assay for monitoring Streptomyces -mediated solubilization of lignin when cultures are degrading lignocellulosic substrates in submerged cultures or in solid-state fermentations. The chapter also describes a simplified lignin acidolysis procedure that is important for chemically ...
D L, Crawford, A L, Pometto
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