نتایج جستجو برای: thermal polymerization tp

تعداد نتایج: 255322  

2003
Randy P. Washington Oliver Steinbock

Frontal polymerization involves the conversion of monomer to polymer in a localized reaction zone that propagates due to the interplay of thermal conduction and temperature-dependent reaction rates. The localization of reactions and the fast increase in temperature are the key features that allow for the rapid synthesis of a wealth of polymer systems with spatially controlled microstructures an...

Journal: :Journal of Climate 2021

Abstract The thermal effect of entire Tibetan Plateau (TP) tends to strengthen the South Asian summer monsoon (SASM); however, how does this component respond conditions different TP domains? How do condition influences other monsoons including East (EASM) and Southeast (SEASM)? These questions are addressed by conducting an experiment with CESM, which is forced reducing surface albedo over pla...

1995
D. Kharzeev L. McLerran H. Satz

We calculate the dissociation rates of quarkonium ground states by tunnelling and direct thermal activation to the continuum. For hadronic matter at temperatures T ≤ 0.2 GeV, neither of these mechanisms leads to a sufficiently large dissociation to explain the experimentally observed suppression of charmonium. Dissociation by sequential excitation to excited energy levels, although OZI-forbidde...

Transdermal patches loaded with pravastatin was previously characterized in another published study by Serrano-Castañeda et al; 2015. These transdermal patches (TP) were generated by the plate casting technique, the in vitro percutaneous absorption studies of TP were evaluated for three different formulations of TP with different quantities of Pluronic F-127 (PF-127): i) without PF-127 (TP W), ...

Amitriptyline hydrochloride is a highly permeable active pharmaceutical ingredient (API). The function of these drugs is to block the reuptake of the neurotransmitters, norepinephrine and serotonin in the central nervous system. The nano-sized Amitriptyline (AT) imprinted polymer particles were synthesized successfully. The nanoparticles were characterized by Fourier transform infrared spectros...

2015
C. Adrian Figg Alexandre Simula Kalkidan A. Gebre Bryan S. Tucker David M. Haddleton Brent S. Sumerlin

Polymerization-induced self-assembly (PISA) is a versatile technique to achieve a wide range of polymeric nanoparticle morphologies. Most previous examples of self-assembled soft nanoparticle synthesis by PISA rely on a growing solvophobic polymer block that leads to changes in nanoparticle architecture during polymerization in a selective solvent. However, synthesis of block copolymers with a ...

2016
Asako Narai-Kanayama Tomoko Hanaishi Keiichi Aso

BACKGROUND Previously, we had reported that α-chymotrypsin-catalyzed polymerization of l-cysteine ethyl ester in a frozen buffer provided poly-l-cysteine (PLCys) in good yield, of which degree of polymerization had been determined to be 6-11. Almost all of SH groups in PLCys were in free forms. Such a multi-thiol peptide may cross-link proteins through thiol/disulfide (SH/SS) exchange reactions...

Journal: :Atmosphere 2021

It is an important to study atmospheric thermal and dynamic vertical structures over the Tibetan Plateau (TP) their impact on precipitation by using long-term observation at representative stations. This exhibits observational facts of summer variation subdiurnal scale its TP with hourly intensive soundings in Jiulong during 2013–2020. found that amount frequency are low daytime high nighttime,...

Ionomers are generally described by copolymers having either acrylic or methacylic acid as one component and the other component is mostly either ethylene or styrene. The objective of this research was to study the thermal behaviour and stability of ionomers of styrene with some alkali metal acrylates. These materials have been synthesized by neutralization of the respective copoly...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2014
Murielle F Delley Francisco Núñez-Zarur Matthew P Conley Aleix Comas-Vives Georges Siddiqi Sébastien Norsic Vincent Monteil Olga V Safonova Christophe Copéret

Mononuclear Cr(III) surface sites were synthesized from grafting [Cr(OSi(O(t)Bu)3)3(tetrahydrofurano)2] on silica partially dehydroxylated at 700 °C, followed by a thermal treatment under vacuum, and characterized by infrared, ultraviolet-visible, electron paramagnetic resonance (EPR), and X-ray absorption spectroscopy (XAS). These sites are highly active in ethylene polymerization to yield pol...

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