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6,184 Newest Publications about the topic molecular weight

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Reactive melt blending of low-density polyethylene with poly (acrylic acid)

29-Mar-2015 | Author(s): Tahseen A. Saki, Arabian Journal of Chemistry, 2015

Publication date: March 2015 Source:Arabian Journal of Chemistry, Volume 8, Issue 2 Author(s): Tahseen A. Saki Reactive melt blending of low-density polyethylene LDPE with a low molecular weight poly (acrylic acid) PAA in the presence of benzoyl peroxide (BPO) free radical initiator was ...

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Impact of Thromboprophylaxis across the US Acute Care Setting

27-Mar-2015 | Wei Huang et al., PLoS ONE, 2015

by Wei Huang, Frederick A. Anderson, Sophie K. Rushton-Smith, Alexander T. Cohen Background The risk of venous thromboembolism (VTE) can be reduced by appropriate use of anticoagulant prophylaxis. VTE prophylaxis does, however, remain substantially underused, particularly among acutely ill ...

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O-tert-Butyltyrosine, an NMR Tag for High-Molecular-Weight Systems and Measurements of Submicromolar Ligand Binding Affinities

27-Mar-2015 | Wan-Na Chen; Kekini Vahini Kuppan; Michael David Lee; Kristaps Jaudzems; Thomas Huber; Gottfried Otting, Journal of the American Chemical Society, 2015

O-tert-Butyltyrosine (Tby) is an unnatural amino acid that can be site-specifically incorporated into proteins using established orthogonal aminoacyl-tRNA synthetase/tRNA systems. Here we show that the tert-butyl group presents an outstanding NMR tag that can readily be observed in ...

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Method for Determination of Polyethylene Glycol Molecular Weight

27-Mar-2015 | Sari Pihlasalo; Pekka Hänninen; Harri Härmä, Analytical Chemistry, 2015

A method utilizing competitive adsorption between polyethylene glycols (PEGs) and labeled protein to nanoparticles was developed for the determination of PEG molecular weight (MW) in a microtiter plate format. Two mix-and-measure systems, time-resolved luminescence resonance energy transfer ...

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Stabilization of self‐assembled microdroplets using short chain alcohols

26-Mar-2015 | Farid Farajollahi, Othmar Marti, Masoud Amirkhani, Journal of Polymer Science Part B: Polymer Physics, 2015

ABSTRACT The condensation of water vapor on a volatile polymeric solution leads to a porous surface after evaporation of both solvent and water. However, the stabilization of the water microdroplet is of great importance, which can be achieved using specific polymer or adding a third substance ...

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Living Anionic Polymerization of Functional Aziridines

26-Mar-2015 | Laura Thomi, Frederik R. Wurm, Macromolecular Symposia, 2015

Summary 2‐(Oct‐7‐en‐1‐yl)‐N‐mesylaziridine was used as a novel monomer for the anionic ring‐opening polymerization. This is the first functional aziridine‐derivative that can be polymerized via an anionic mechanism. Homo‐ and copolymers with (2‐n‐decyl‐N‐mesylaziridine) were synthesized and ...

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Anionic Polymerization of Reactive 3‐Chloropropyl Isocyanate

26-Mar-2015 | Chang‐Geun Chae, Priyank N. Shah, Joonkeun Min, Yong‐Guen Yu, Jae‐Suk Lee, Macromolecular Symposia, 2015

Summary For the synthesis of a new functional polyisocyanate, the anionic polymerization of 3‐chloropropyl isocyanate (3CPIC) was carried out using several initiator systems in THF at −98 °C. When a sodium benzanilide (Na‐BA) cluster was used as an aggregated initiator, the initiation ...

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Diphenyl Phosphate‐Catalyzed Ring‐Opening Polymerization of 1,5‐Dioxepan‐2‐one

26-Mar-2015 | Kosuke Makiguchi, Chihiro Asakura, Kazuma Yanai, Toshifumi Satoh, Toyoji Kakuchi, Macromolecular Symposia, 2015

Summary: The ring‐opening polymerization (ROP) of 1,5‐dioxepan‐2‐one (DXO) catalyzed by diphenyl phosphate (DPP) using 3‐phenyl‐1‐propanol (PPA) as an initiator has been studied. The polymerization in toluene at room temperature produced poly(1,5‐dioxepan‐2‐one) (PDXO) with a narrow ...

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Laser-Based Mass Spectrometric Assessment of Asphaltene Molecular Weight, Molecular Architecture, and Nanoaggregate Number

24-Mar-2015 | Andrew E. Pomerantz; Qinghao Wu; Oliver C. Mullins; Richard N. Zare, Energy & Fuels, 2015

Unbiased analysis of asphaltene molecules by mass spectrometry requires that the three fundamental steps in mass spectrometry-volatilization, ionization, and mass analysis-are performed reliably and with nearly equivalent efficiency for nearly all of the diverse components in asphaltenes. Here, ...

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Water‐soluble polymeric chemosensor for selective detection of Hg2+ in aqueous solution using rhodamine‐based modified poly(acrylamide–acrylic acid)

23-Mar-2015 | Tong‐Mou Geng, Da‐Yu Wu, Luminescence, 2015

Abstract We report the fabrication of a novel easily available turn‐on fluorescent water‐soluble polymeric chemosensor for Hg2+ ions that was simply prepared by micellar free radical polymerization of a water‐insoluble organic rhodamine‐based Hg2+‐recognizing monomer (GR6GH), with hydrophilic ...

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