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147 Newest Publications about the topic static light scattering

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Enhanced Performance of Blended Polymer Excipients in Delivering a Hydrophobic Drug through the Synergistic Action of Micelles and HPMCAS

10-Mar-2017 | Ziang Li; Lindsay M. Johnson; Ralm G. Ricarte; Letitia J. Yao; Marc A. Hillmyer; Frank S. Bates; Timothy P. Lodge, Langmuir, 2017

Blends of hydroxypropyl methylcellulose acetate succinate (HPMCAS) and dodecyl (C12)-tailed poly(N-isopropylacrylamide) (PNIPAm) were systematically explored as a model system to dispense the active ingredient phenytoin by rapid dissolution, followed by the suppression of drug crystallization for ...

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Tensile Behavior of a Substituted Poly(m‐,p‐phenylene) versus Its Parent Counterpart and Synthesis of Related Polyarylenes

30-Jan-2017 | Bernd Deffner, Sètuhn Jimaja, Anja Kroeger, A. Dieter Schlüter, Macromolecular Chemistry and Physics, 2017

In a recent report, a poly(m,p‐phenylene) with acid‐cleavable trialkylsilyl side chains is synthesized by Suzuki polycondensation in a molecular weight of Mw = 300 kDa determined by gel permeation chromatography (GPC). Such a high value suggests this polymer as a potentially attractive material ...

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Supramolecular “Big Bang” in a Single-Ionic Surfactant/Water System Driven by Electrostatic Repulsion: From Vesicles to Micelles

25-Jan-2017 | Loïc Leclercq; Pierre Bauduin; Véronique Nardello-Rataj, Langmuir, 2017

In aqueous solution, dimethyldi-n-octylammonium chloride, [DiC8][Cl], spontaneously forms dimers at low concentrations (1–10 mM) to decrease the strength of the hydrophobic–water contact. Dimers represent ideal building blocks for the abrupt edification of vesicles at 10 mM. These vesicles are ...

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Green-to-Red Electrochromic Fe(II) Metallo-Supramolecular Polyelectrolytes Self-Assembled from Fluorescent 2,6-Bis(2-pyridyl)pyrimidine Bithiophene

20-Jan-2017 | Sandesh Pai; Michael Moos; Maximilian H. Schreck; Christoph Lambert; Dirk G. Kurth, Inorganic Chemistry, 2017

The structure and properties of metallo-supramolecular polyelectrolytes (MEPEs) self-assembled from rigid 2,6-bis(2-pyridyl)pyrimidine and the metal ions FeII and CoII are presented. While FeL1-MEPE (L1 = 1,4-bis[2,6-bis(2-pyridyl)pyrimidin-4-yl]benzene) is deep blue, FeL2- and CoL2-MEPE (L2 = ...

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Energies, Vol. 9, Pages 1037: Shear Resistance Properties of Modified Nano-SiO2/AA/AM Copolymer Oil Displacement Agent

09-Dec-2016 | Lai, Nanjun ; Guo, Xin ; Zhou, Ning ; Xu, Qian, Energies, 2016

To address the problem regarding poor shear resistance of commonly employed polymers for oil displacement, modified nano-SiO2/AA/AM copolymer (HPMNS) oil displacement agents were synthesized using acrylic acid (AA), acrylamide (AM), and modified nano-SiO2 of different modification degrees as raw ...

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Influence of aqueous dispersions in place of organic solvents during the synthesis of shape memory polyurethanes on their structure and properties

13-Sep-2016 | Giuliano S. Martins, Iaci M. Pereira, Nicolas M.L. Hoehne, Rodrigo L. Oréfice, Polymer Engineering and Science, 2016

In this work, the effect of synthesizing shape memory polyurethanes in aqueous dispersions instead of in organic solvents on the structure and properties of the obtained polymers was investigated. Shape memory polyurethanes based on polycaprolactone diol and isophorone diisocyanate were ...

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IJMS, Vol. 17, Pages 1539: Characterization of Post-Translational Modifications to Calsequestrins of Cardiac and Skeletal Muscle

13-Sep-2016 | Lewis, Kevin M.; Munske, Gerhard R.; Byrd, Samuel S.; Kang, Jeehoon ; Cho, Hyun-Jai ; Ríos, Eduardo ; Kang, ChulHee, International Journal of Molecular Sciences, 2016

Calsequestrin is glycosylated and phosphorylated during its transit to its final destination in the junctional sarcoplasmic reticulum. To determine the significance and universal profile of these post-translational modifications to mammalian calsequestrin, we characterized, via mass spectrometry, ...

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Synthesis and Aqueous Solution Properties of Block Copolyethers with Latent Chemical Functionality

29-Aug-2016 | Boyana Stoyanova, Christo Novakov, Christo B. Tsvetanov, Stanislav Rangelov, Macromolecular Chemistry and Physics, 2016

Three series of polyglycidol‐poly(allyl glycidyl ether)‐polyglycidol (PG‐PAGE‐PG) triblock copolymers with ranging PG contents and fixed molar masses of the middle PAGE block are prepared. The copolymers are analogous to the Pluronic, poly(ethylene oxide)‐poly(propylene oxide)‐poly(ethylene ...

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Aqueous Self-Assembly of a Protein-Mimetic Ampholytic Block Copolypeptide

19-Jul-2016 | Jing Sun; Peter Černoch; Antje Völkel; Yuhan Wei; Janne Ruokolainen; Helmut Schlaad, Macromolecules, 2016

This report describes the aggregation behavior of an ABC-type ampholytic block copolypeptide, poly(ethylene oxide)-block-poly(l-lysine)-block-poly(l-glutamate), in aqueous media in dependence of pH. Polypeptide secondary structures and self-assemblies are investigated by circular dichroism (CD), ...

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Characterization of Clusters and Unimers in Associating Solutions of Chitosan by Dynamic and Static Light Scattering

17-May-2016 | Yury A. Skorik, Valentina A. Petrova, Olga V. Okatova, Irina A. Strelina, Ekaterina R. Gasilova, Macromolecular Chemistry and Physics, 2016

Association of two chitosans of different degrees of acetylation (DA) is studied in dilute water/acid/salt solutions by combined analysis of static and dynamic light scattering. The influence of sodium salt anions Cl− and CH3COO− on conformation of macromolecules and properties of clusters was ...

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