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2,572 Newest Publications about the topic elongation

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Flexible polyurethane foams formulated with polyols derived from waste carbon dioxide

14-Jul-2016 | Mica DeBolt, Alper Kiziltas, Deborah Mielewski, Simon Waddington, Michael J. Nagridge, Journal of Applied Polymer Science, 2016

ABSTRACT In this study, flexible polyurethane foam samples were prepared using concentrations of up to 50% of two novel polycarbonate polyols, Polyol D 251‐20 and Polyol D 351‐30, derived from the copolymerization of carbon dioxide (CO2) and epoxides, to determine whether the final foam ...

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Poly(vinyl alcohol) composite films with high percent elongation prepared from amylose‐fatty ammonium salt inclusion complexes

13-Jul-2016 | George F. Fanta, Frederick C. Felker, Gordon W. Selling, William T. Hay, Atanu Biswas, Journal of Applied Polymer Science, 2016

ABSTRACT Amylose inclusion complexes prepared from cationic fatty ammonium salts and jet‐cooked high amylose starch were combined with poly(vinyl alcohol) (PVOH) to form glycerol‐plasticized films. For the octadecylammonium salt complexes, elongation was significantly higher than the PVOH ...

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The effect of ceria nanoparticles on improving heat resistant properties of fluorosilicone rubber

13-Jul-2016 | Xiang Xu, Junjie Liu, Pei Chen, Dafu Wei, Yong Guan, Xiaojuan Lu, Huining Xiao, Journal of Applied Polymer Science, 2016

ABSTRACT The thermal aging behavior of poly(3,3,3‐trifluoropropyl)methylsiloxane was investigated by thermal gravimetric analysis and isothermal aging tests, and the results indicated the degradation mechanism II, oxidation scission of the side groups, played a more important role when the ...

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Chemical Synthesis of Glycosaminoglycans

13-Jul-2016 | Marco Mende; Christin Bednarek; Mirella Wawryszyn; Paul Sauter; Moritz B. Biskup; Ute Schepers; Stefan Bräse, Chemical Reviews, 2016

Glycosaminoglycans (GAGs) as one major part of the glycocalyx are involved in many essential biological cell processes, as well as in many courses of diseases. Because of the potential therapeutic application of GAG polymers, fragments, and also derivatives toward different diseases (e.g., ...

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Elongation factor G initiates translocation through a power stroke [Biophysics and Computational Biology]

05-Jul-2016 | Chunlai Chen; Xiaonan Cui; John F. Beausang; Haibo Zhang; Ian Farrell; Barry S. Cooperman; Yale E. Goldman, Proceedings of the National Academy of Sciences current issue, 2016

During the translocation step of prokaryotic protein synthesis, elongation factor G (EF-G), a guanosine triphosphatase (GTPase), binds to the ribosomal PRE-translocation (PRE) complex and facilitates movement of transfer RNAs (tRNAs) and messenger RNA (mRNA) by one codon. Energy liberated by ...

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[Research Article] Chemical genetic discovery of PARP targets reveals a role for PARP-1 in transcription elongation

01-Jul-2016 | Bryan A. Gibson; Yajie Zhang; Hong Jiang; Kristine M. Hussey; Jonathan H. Shrimp; Hening Lin; Frank Schwede; Yonghao ..., Science , 2016

Poly[adenosine diphosphate (ADP)–ribose] polymerases (PARPs) are a family of enzymes that modulate diverse biological processes through covalent transfer of ADP-ribose from the oxidized form of nicotinamide adenine dinucleotide (NAD+) onto substrate proteins. Here we report a robust NAD+ ...

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ChemInform Abstract: A Sequential Homologation of Alkynes and Aldehydes for Chain Elongation with Optional 13C‐Labeling.

23-Jun-2016 | Andreas Brunner, Lukas Hintermann, ChemInform, 2016

Abstract A series of alkyne substrates is treated in a first step A) or C) to produce an intermediate aldehyde which reacts in a second step with Bestmann—Ohira reagent (I) to produce homologated alkyne products.

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Development of Advanced Elastomeric Conductive Nanocomposites by Selective Chemical Affinity of Modified Graphene

21-Jun-2016 | Horacio J. Salavagione; Susana Quiles-Díaz; Patricia Enrique-Jimenez; Gerardo Martínez; Fernando Ania; Araceli Flore ..., Macromolecules, 2016

The preparation of conductive nanocomposites of poly(styrene-b-ethylene-co-butylene-b-styrene) (SEBS) triblock copolymers with chemically modified graphene is reported. Graphene has been functionalized with short polyethylene brushes by thiol–ene click chemistry in order to enhance the ...

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Quantification of the Effect of Shish-Kebab Structure on the Mechanical Properties of Polypropylene Samples by Controlling Shear Layer Thickness

20-Jun-2016 | Dashan Mi; Chao Xia; Ming Jin; Feifei Wang; Kaizhi Shen; Jie Zhang, Macromolecules, 2016

Oriented “shish-kebab” structure can enable remarkable mechanical enhancement in polymers. Therefore, the formation mechanism and practical application of this structure have been extensively studied. However, the effect of shish-kebab content on mechanical properties is still uncertain. ...

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Comparing homogeneous and heterogeneous routes for ionic crosslinking of chitosan membranes

18-Jun-2016 | Author(s): J.S. Marques, J.A.O.D. Chagas, J.L.C. Fonseca, M.R. Pereira, Reactive and Functional Polymers, 2016

Publication date: June 2016 Source:Reactive and Functional Polymers, Volume 103 Author(s): J.S. Marques, J.A.O.D. Chagas, J.L.C. Fonseca, M.R. Pereira H2SO4 — ionically crosslinked chitosan membranes were prepared via homogeneous and heterogeneous routes. The control variable in ...

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