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2,132 Newest Publications about the topic elongation

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Effect of mechanical treatment on morphology and thermal and mechanical properties of sugar cane bagasse–low‐density polyethylene composites

25-Jul-2015 | Tshwafo Motaung, Mokgaotsa Mochane, Thollwana Makhetha, Setumo Motloung, Thabang Mokhothu, Teboho Mokhena, Rantooa Moji, Polymer Composites, 2015

Sugar cane bagasse (SB)–low density polyethylene composites with different mechanically treated SB were prepared by a melt compounding method. The effect of the different treatments using supermasscolloider at low content of SB on the morphology, mechanical properties, and thermal behavior was ...

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Modification of poly(3‐hydroxybutyrate‐co‐3‐hydroxyvalerate) properties by reactive blending with a monoterpene derivative

25-Jul-2015 | Laura Pilon, Catherine Kelly, Journal of Applied Polymer Science, 2015

ABSTRACT A one‐step reactive blending approach is reported for modification of the thermal and mechanical properties of poly (3‐hydroxybutyrate‐co‐3‐hydroxyvalerate). A free‐radical initiated reaction of the monoterpene derivative, linalool, was carried out with PHBV in the melt. This ...

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Reactive copolymer functionalized graphene sheet for enhanced mechanical and thermal properties of epoxy composites

24-Jul-2015 | Qiang Ma, Jing Luo, Yuanxun Chen, Wei Wei, Ren Liu, Xiaoya Liu, Journal of Polymer Science Part A: Polymer Chemistry, 2015

ABSTRACT Uniform dispersion of graphene nanosheets (GNS) in a polymer matrix with strong filler–matrix interfacial interaction, preserving intrinsic material properties of GNS, is the critical factor for application of GNS in polymer composites. In this work, a novel reactive copolymer VCz–GMA ...

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Mixture design to develop biodegradable sheets with high levels of starch and polyvinyl alcohol

24-Jul-2015 | Juliano Zanela, Marianne Ayumi Shirai, Mônica Oliveira Reis, Suzana Mali, Maria Victória Eiras Grossmann, Fabio Yama ..., Starch - Stärke, 2015

Abstract A mixture design was used to analyse the effects of polyvinyl alcohol (PVA) on glycerol‐plasticised cassava starch sheets obtained by flat extrusion from a twin‐screw extruder. PVA was the main component that improved the properties of the sheets, and glycerol presented the opposite ...

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Polymerized cellulose building blocks: relative energy, electronic property, and reactivity from quantum chemical approach

24-Jul-2015 | Hongcun Bai, Yuhua Wu, Liqiong Wang, Yulong Ma, Yongqiang Ji, Polymers for Advanced Technologies, 2015

This work presented quantum chemical studies of the polymerized cellulose building blocks based on Kohn–Sham density functional theory. The relative energy, electronic property, and reactivity of the polymerized cellulose fragments with various sizes were investigated. According to the cohesive ...

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[Perspective] Four legs too many?

24-Jul-2015 | Susan Evans, Science , 2015

A classic Gary Larson cartoon shows a robed and bearded figure rolling out clay strips, with the caption: “God makes the snake.” Body elongation was certainly fundamental in the evolution of snakes from lizards, as was the shrinking and ultimately the loss of limb pairs (limb reduction). However, ...

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Synthesis of Building Blocks for Carbopeptoids and Their Triazole Isoster Assembly

23-Jul-2015 | Vitālijs Rjabovs, Pāvels Ostrovskis, Daniels Posevins, Gļebs Kiseļovs, Viktors Kumpiņš, Anatoly Mishnev, Māris Turks, European Journal of Organic Chemistry, 2015

Abstract Synthetic approaches to new N‐protected γ‐ and δ‐furanoid sugar amino acids (SAAs) or tetrahydrofuran amino acids were developed. SAAs have emerged as valuable building blocks for the syntheses of peptide mimetics, so‐called carbopeptoids. 3‐C‐Substituted ...

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Preparation of Fine‐Grained and High‐Strength Mg–8Li–3Al–1Zn Alloy by Accumulative Roll Bonding

22-Jul-2015 | Tianzi Wang, Haipeng Zheng, Ruizhi Wu, Jinliang Yang, Xudong Ma, Milin Zhang, Advanced Engineering Materials, 2015

Accumulative roll bonding (ARB) technique is used to manufacture fine‐grained and high‐strength Mg–8Li–3Al–1Zn alloy. Then, investigate the microstructure and mechanical properties. Results show that, the ARB‐processed sheet possesses good bonding performance. The ARB refines the grains and ...

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Heterometallic Second-Row Transition Metal Chain Compounds in Two Charge States: Syntheses, Properties, and Electronic Structures of [Mo–Mo–Ru]6+/7+ Chains

22-Jul-2015 | David W. Brogden; John F. Berry, Inorganic Chemistry, 2015

Reaction of Mo2(dpa)4 (dpa = 2,2′-dipyridylamido) with 1/2 equiv of [Ru(CO)3Cl2]2 in molten naphthalene at 250 °C provides facile access to the first all-second-row transition metal heterometallic chain compound, MoMoRu(dpa)4Cl2 (1). The one-electron oxidized compound [MoMoRu(dpa)4Cl2](OTf) (2) ...

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Electromechanical Actuator Ribbons Driven by Electrically Conducting Spring‐Like Fibers

20-Jul-2015 | Peining Chen, Sisi He, Yifan Xu, Xuemei Sun, Huisheng Peng, Advanced Materials, 2015

Electrically conducting fibers are woven into polymer ribbons to prepare electromechanical actuators. The ribbons generate a strain rate of more than 103 times that of typical electrochemical actuators, accompanied with a lower operating voltage and faster responsiveness compared to ...

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