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5,292 Newest Publications about the topic molecular weight
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Transport and accumulation of ferrocene tagged poly(vinyl chloride) at the buried interfaces of plasticized membrane electrodes
22-05-2013 | Manzar Sohail; Roland De Marco; Muhammad Tanzirul Alam; Marcin Pawlak; Eric Bakker, Analyst, 2013
Cyclic voltammetry (CV), synchrotron radiation-X-ray photoelectron spectroscopy (SR-XPS) and near edge X-ray absorption fine structure (NEXAFS) show that oxidation of ferrocene tagged PVC induces an accumulation of high molecular weight polymer at the buried interface between the substrate ...
Bioinspired hierarchical superhydrophobic structures formed by n-paraffin waxes of varying chain lengths
22-05-2013 | S. Pechook; B. Pokroy, Soft Matter, 2013
Nature demonstrates beautiful examples of superhydrophobic surfaces, which always exhibit hierarchical roughness. We demonstrate a simple biomimetic route to the formation of hierarchical roughness on paraffin wax surfaces by the successive deposition of waxes of increasing molecular weight ...
Online and Offline Mass Spectrometric Study of the Impact of Oxidation and Ageing on Glyoxal Chemistry and Uptake onto Ammonium Sulfate Aerosols
22-05-2013 | Jacqueline Hamilton; Maria Teresa Baeza Romero; Emanuela Finessi; Andrew R Rickard; Robert M Healy; Salvatore Peppe; ..., Faraday Discussions, 2013
Recent laboratory and modelling studies have shown that reactive uptake of low molecular weight α-dicarbonyls such as glyoxal (GLY) by aerosols is a potentially significant source of secondary organic aerosol (SOA). However, previous studies disagree in the magnitude of the uptake of GLY, the ...
PET Imaging in Prostate Cancer: Focus on Prostate-Specific Membrane Antigen
22-05-2013 | Mease, Ronnie C.; Foss, Catherine A.; Pomper, Martin G., Current Topics in Medicinal Chemistry, 2013
Abstract: Prostate cancer (PCa) is the second leading cause of cancer-related death in American men. Positron emission tomography/computed tomography (PET/CT) with emerging radiopharmaceuticals promises accurate staging of primary disease, restaging of recurrent disease, detection of ...
Optimization of a formic/acetic acid delignification treatment on beech wood and its influence on the structural characteristics of the extracted lignins
17-05-2013 | Mathilde Simon, Yves Brostaux, Caroline Vanderghem, Benoit Jourez, Michel Paquot, Aurore Richel, Journal of Chemical Technology & Biotechnology, 2013
Abstract Background In order to replace petrochemicals by bio‐based lignin products in a lot of high value‐added applications, a formic/acetic acid treatment was adapted to beech wood (Fagus sylvatica L.) for lignin extraction. Results Beech wood particles were delignified at ...
Control of Molecular Weight and Tacticity in Stereospecific Living Cationic Polymerization of α‐Methylstyrene at 0 °C Using FeCl3‐Based Initiators: Effect of Tacticity on Thermal Properties
17-05-2013 | Sanjib Banerjee, Tapas K. Paira, Tarun K. Mandal, Macromolecular Chemistry and Physics, 2013
Abstract The successful stereospecific living cationic polymerization of α‐methylstyrene (α‐MeSt) using FeCl3‐based initiator systems at 0 °C is reported. Linear first‐order ln([M]0/[M]) vs. time and linear molecular weight vs. conversion plots suggest that the polymerization is living in ...
Intracellular distribution of human SIRT7 and mapping of the nucle(ol)ar localization signal
17-05-2013 | Shashi Kiran, Nirupa ma Chatterjee, Sapna Singh, Sunil C. Kaul, Renu Wadhwa, Gayatri Ramakrishna, FEBS Journal, 2013
Abstract Sirtuins belong to a class of NAD‐dependent deacetylases and consists of seven distinct isoforms of which SIRT7 is the least studied member. In the present study, the subcellular expression of SIRT7 in primary fibroblasts undergoing senescence was evaluated by immunocytochemistry ...
Reactor modeling and recipe optimization of polyether polyol processes: Polypropylene glycol
17-05-2013 | Yisu Nie, Lorenz T. Biegler, Carlos M. Villa, John M. Wassick, AIChE Journal, 2013
Abstract This paper addresses the reactor modeling and recipe optimization of conventional semi‐batch polyether polyol processes, in particular for the polymerization of propylene oxide to make polypropylene glycol. A rigorous mathematical reactor model is first developed to describe the ...
Synthesis and self‐assembling of poly(N‐isopropylacrylamide‐block‐poly(L‐lactide)‐block‐poly(N‐isopropylacrylamide) triblock copolymers prepared by combination of ring‐opening polymerization and atom transfer radical polymerization
17-05-2013 | Yanfei Hu, Vincent Darcos, Sophie Monge, Suming Li, Journal of Polymer Science Part A: Polymer Chemistry, 2013
ABSTRACT Novel thermo‐responsive poly(N‐isopropylacrylamide)‐block‐poly(l‐lactide)‐block‐poly(N‐isopropylacylamide) (PNIPAAm‐b‐PLLA‐b‐PNIPAAm) triblock copolymers were successfully prepared by atom transfer radical polymerization of NIPAAm with Br‐PLLA‐Br macroinitiator, using a ...
Synthesis and properties of butyl rubber–poly(ethylene oxide) graft copolymers with high PEO content
17-05-2013 | Solmaz Karamdoust, Colin V. Bonduelle, Ryan C. Amos, Bethany A. Turowec, Sharon Guo, Lorenzo Ferrari, Elizabeth R. G ..., Journal of Polymer Science Part A: Polymer Chemistry, 2013
ABSTRACT Butyl rubber‐poly(ethylene oxide) (PEO) graft copolymers with high PEO content (40–83 wt %) were synthesized by the functionalization and activation of the double bond moiety of butyl rubber containing high (7 mol %) isoprene content and subsequent reaction with PEO of different ...
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