Results 21 to 30 of about 194,083 (306)

New Membrane-Forming Aromatic Co-Poly(amide-imide)s: Influence of the Chemical Structure on the Morphological, Thermal and Transport Properties

Membranes, 2022
Polymer film membranes are used to solve specific separation problems that dictate structural requirements. Structural and morphological parameters of film membranes based on glassy polyheteroarylenes can be controlled in the process of preparation from ...
Svetlana V. Kononova, Danila A. Kuznetsov, Galina N. Gubanova, Elena V. Kruchinina, Anatoly Ya. Volkov, Milana E. Vylegzhanina, Elena N. Vlasova, Boris Z. Volchek   +7 more
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Laboratory Research of Degradation of Polyhydroxyalkanoates of Different Chemical Structure in Soil [PDF]

Журнал Сибирского федерального университета: Серия Биология, 2015
Degradation of three types of polyhydroxyalkanoates (PHAs) was studied in the laboratory conditions in the field soil at two temperature regimes during 35 days.
Olga N. Vinogradova, Daria A. Syrvacheva
doaj  

Copolymer of chitosan with acrylamide: electron beam stimulated synthesis, structure and properties

Chimica Techno Acta, 2023
The aim of this research was to obtain the grafted copolymer of chitosan with acrylamide using the electron beam irradiation. Radiation dose was varied from 6 to 160 kGy.
Ilia M. Antonov, Mikhail A. Mikhailenko, Tatyana P. Shakhtshneider, Ilia V. Eltsov, Svetlana A. Kuznetsova, Maxim V. Zelikman, Alexander A. Bryazgin   +6 more
doaj   +1 more source

Solid-state conformation of copolymers of ß-benzyl-L-aspartate with L-alanine, L-leucine, L-valine, γ-benzyl-L-glutamate, or ε-carbobenzoxy-L-lysine [PDF]

, 1980
The solid-state conformation of copolymers of ß-benzyl-L-aspartate [L-Asp(OBzl)] with L-leucine (L-Leu), L-alanine (L-Ala), L-valine (L-Val), γ-benzyl-L-glutamate [L-Glu(OBzl)], or ε-carbobenzoxy-L-lysine (Cbz-L-Lys) has been studied by ir spectroscopy ...
Anderson, James M., Bantjes, Adriaan, Feijen, Jan, Sederel, Willem L.   +3 more
core   +2 more sources

A New Modified Electrode with a Copolymer of Aniline/Fe(III)-Tetrakis(Para-Aminophenyl)Porphyrin: Test of Its Electrocatalytic Activity Toward the Reduction of Molecular Oxygen and Oxidation of Ascorbic Acid and Sulfite Ion.

International Journal of Electrochemical Science, 2012
The simultaneous electropolymerization of aniline and Fe-porphyrin in HCl by cycling the potential on glassy carbon (GC) and highly ordered pyrolytic graphite (HOPG) electrodes was studied by Scanning Electron Microscopy (SEM), Atomic Force Microscopy ...
Mauricio Lucero, Maritza Riquelme, Galo Ramírez, M. Carmen Goya, Alejandro González Orive, Alberto Hernández Creus, M. Carmen Arévalo, María J. Aguirre   +7 more
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Segmented block copolymers based on dimerized fatty acids and poly(butylene terephthalate) [PDF]

, 1993
Segmented block copolymers based on dimerized fatty acids and poly(butylene terephthalate) (PBT) have been synthesized in the melt. Branched C36, C44 and C70 dimerized fatty acids with a low degree of unsaturation were used.
Gaymans, R.J., Manuel, H.J.
core   +2 more sources

Photoluminescence of Metal–Polymer Complexes Based on Functional Triazole–Carbazole Copolymers with Terbium Ions

Applied Sciences, 2023
Functional copolymers of 1-vinyl-1,2,4-triazole (VT) and N-vinylcarbazole (VK) were synthesized using a free-radical polymerization. The content of hole-conducting N-vinylcarbazole units was found to be 9, 16, and 37 mol. %.
Ruslan Smyslov, Artem Emel’yanov, Tatiana Nekrasova, Galina Prozorova, Svetlana Korzhova, Olga Trofimova, Alexander Pozdnyakov   +6 more
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DNA multiblock copolymers [PDF]

Chemical Communications, 2007
Single stranded (ss) DNA block copolymers were applied to synthesize DNA multiblock architectures by hybridization; these polymeric bioorganic hybrids were characterized by gel electrophoresis and MALDI-TOF mass spectrometry.
Alemdaroglu, F., Safak, M., Wang, J., Berger, R., Herrmann, A.   +4 more
openaire   +3 more sources

Silver Nanoparticles’ Localized Surface Plasmon Resonances Emerged in Polymeric Environments: Theory and Experiment

Micro
Considering that the plasmonic properties of metallic nanoparticles (NPs) are strongly influenced by their dielectric environment, comprehension and manipulation of this interplay are crucial for the design and optimization of functional plasmonic ...
Maria Tsarmpopoulou, Dimitrios Ntemogiannis, Alkeos Stamatelatos, Dimitrios Geralis, Vagelis Karoutsos, Mihail Sigalas, Panagiotis Poulopoulos, Spyridon Grammatikopoulos   +7 more
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Sulfonated poly (arylene ether sulfone) proton exchange membranes for fuel cell applications

Green Processing and Synthesis, 2015
Sulfonated poly (arylene ether sulfone) membranes were synthesized by direct copolymerization of 4,4-bis (4-hydroxyphenyl) valeric acid, 4,4′-difluorodiphenyl sulfone and synthesized sulfonated 6F-bisphenol-A/bisphenol-A as novel proton exchange ...
Kiran Vaishnav, Gaur Bharti
doaj   +1 more source