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2.635 Aktuelle Fachpublikationen zum Thema temperature

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Phase diagrams of nanoalloys: influence of size and morphology

27.05.2015 | F. Berthier; E. Maras; B. Legrand, Physical Chemistry Chemical Physics, 2015

The size dependence of the phase diagram of nanoalloys with a tendency to phase separate is investigated. As the critical temperature may depend on both the size and the morphology of the nanoparticles, we consider nanowires with different cross-sections and also nanotubes with different ...

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Structure and morphology of nanoporous zno and dark current‐Voltage characteristics of the glass/(TCO)/zno/poly[2,7‐(9,9‐dioctylfluorene)‐alt‐(5,5'‐bithiophene)/ag structure

23.05.2015 | Lidia Ghimpu, Tamara Potlog, Ana‐Maria Resmerita, Ion Tiginyanu, Aurica Farcas, Journal of Applied Polymer Science, 2015

ABSTRACT The hybrid organic‐inorganic structure based on glass/(TCO)/nanoporous ZnO/poly[2,7‐(9,9‐dioctylfluorene)‐alt‐(5,5′‐bithiophene)]/Ag that was prepared by physical deposition has been investigated. The structure of the nanostructured ZnO obtained by magnetron sputtering was confirmed ...

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Preparation and characterization of a composite nanofiltration membrane from cyclen and trimesoyl chloride prepared by interfacial polymerization

22.05.2015 | Gui‐E. Chen, Yan‐Jun Liu, Zhen‐Liang Xu, Deng Hu, Hui‐Hong Huang, Li Sun, Journal of Applied Polymer Science, 2015

ABSTRACT A novel nanofiltration (NF) membrane was prepared with cyclen and trimesoyl chloride by interfacial polymerization on a poly(ether sulfone) ultrafiltration membrane with a molecular weight cutoff of 50,000 Da. The effects of the reaction time, monomer concentration, and heat‐treatment ...

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Matrimid‐based carbon tubular membranes: The effect of the polymer composition

20.05.2015 | Norazlianie Sazali, Wan Norharyati Wan Salleh, Nik Abdul Hadi Md Nordin, Zawati Harun, Ahmad Fauzi Ismail, Journal of Applied Polymer Science, 2015

ABSTRACT In this article, we present a development study of new membrane materials and enhancements of productive membranes to improve the current performance of polymeric membranes. Carbon membranes are a promising material for this matter as they offer an improvement in the gas‐separation ...

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Effect of processing conditions on crystallization behavior and mechanical properties of poly(lactic acid) staple fibers

20.05.2015 | Katharina Bruckmoser, Katharina Resch, Journal of Applied Polymer Science, 2015

ABSTRACT Within this study, the applicability of Raman spectroscopy to characterize the crystallinity of PLA staple fibers was evaluated. The influence of the fiber alignment on the possibility to detect crystallinity by using Raman spectroscopy was studied. PLA staple fibers were produced by ...

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Development of bioplastics based on agricultural side‐stream products: Film extrusion of Crambe abyssinica/wheat gluten blends for packaging purposes

20.05.2015 | Hannah Rasel, Therese Johansson, Mikael Gällstedt, William Newson, Eva Johansson, Mikael Hedenqvist, Journal of Applied Polymer Science, 2015

ABSTRACT The purpose of this work was to add economic value to crambe meal, the protein‐rich byproduct from the industrial extraction of Crambe abyssinica seed oil, by using it as a potential feedstock for oilseed meal‐based plastics. The feasibility to produce continuous, flexible plastic ...

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Microencapsulation of vanillin by spray drying using soy protein isolate–maltodextrin as wall material

20.05.2015 | Mohammad Noshad, Mohebbat Mohebbi, Arash Koocheki, Fakhri Shahidi, Flavour and Fragrance Journal, 2015

Abstract In this study, the application of a response surface methodology (RSM) to optimize the microencapsulation of vanillin as a nutraceutical was studied. Soy protein isolate and maltodextrin were used as a wall material. Microencapsulate of vanillin using spray drying with maltodextrin ...

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Investigation of structural, morphological and electrical properties of APCVD vanadium oxide thin films

19.05.2015 | Georgios Papadimitropoulos, Ioannis Kostis, Stelios Trantalidis, Athanasios Tsiatouras, Maria Vasilopoulou, Dimitris ..., physica status solidi (c), 2015

Abstract Vanadium oxide films were chemically vapor deposited (CVD) on oxidized Si substrates covered with CVD tungsten (W) thin films and on glass substrates covered with indium tin oxide (ITO) films, using vanadium(V) oxy‐tri‐isopropoxide (C9H21O4V) vapors. X‐ray diffraction (XRD) ...

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Yolk‐Shell Porous Microspheres of Calcium Phosphate Prepared by Using Calcium L‐Lactate and Adenosine 5′‐Triphosphate Disodium Salt: Application in Protein/Drug Delivery

15.05.2015 | Guan‐Jun Ding, Ying‐Jie Zhu, Chao Qi, Tuan‐Wei Sun, Jin Wu, Feng Chen, Chemistry - A European Journal, 2015

Abstract A facile and environmentally friendly approach has been developed to prepare yolk‐shell porous microspheres of calcium phosphate by using calcium L‐lactate pentahydrate (CL) as the calcium source and adenosine 5′‐triphosphate disodium salt (ATP) as the phosphate source through the ...

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Optimization of melt blending process of nylon 6‐POSS: Improving mechanical properties of spun fibers

14.05.2015 | Ricardo J. Andrade, Zachary N. Weinrich, Creusa I. Ferreira, David A. Schiraldi, João M. Maia, Polymer Engineering and Science, 2015

Blends of nylon 6 and a silsesquioxane additive, aminopropyl isobutyl POSS containing 2.5% POSS by weight, were melt‐compounded with different process conditions in order to test a previously proposed mechanism for reinforcement of PA6 by POSS. In this work, we proposed that above the POSS ...

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