Results 11 to 20 of about 292,954 (197)

Synthesis and Physical Properties of Polyhydroxyalkanoate Polymers with Different Monomer Compositions by Recombinant Pseudomonas putida LS46 Expressing a Novel PHA SYNTHASE (PhaC116) Enzyme

open access: yesApplied Sciences, 2017
A recombinant of Pseudomonas putida LS461 (deletion of the phaC1phaZphaC2 genes) was constructed by introducing cosmid JC123 carrying a novel phaC116 gene from a metagenomic clone. The resulting strain, P.
Parveen K. Sharma   +6 more
doaj   +1 more source

Biomechanical Behaviors and Degradation Properties of Multilayered Polymer Scaffolds: The Phase Space Method for Bile Duct Design and Bioengineering

open access: yesBiomedicines, 2023
This article reports the electrospinning technique for the manufacturing of multilayered scaffolds for bile duct tissue engineering based on an inner layer of polycaprolactone (PCL) and an outer layer either of a copolymer of D,L-lactide and glycolide ...
Ilya Klabukov   +20 more
doaj   +1 more source

PSt-b-PU-b-PSt copolymers using tetraphenylethane-urethane macroinitiator through SARA ATRP

open access: yeseXPRESS Polymer Letters, 2016
The course of supplemental activator and reducing agent (SARA) atom transfer radical polymerization (ATRP) has been presented in the presence of Cu0. The novelty of this work is that SARA ATRP has been used for the first time to synthesize polystyrene-b ...
P. Chmielarz, P. Krol
doaj   +1 more source

Block Copolymers: Synthesis, Self-Assembly, and Applications

open access: yesPolymers, 2017
Research on block copolymers (BCPs) has played a critical role in the development of polymer chemistry, with numerous pivotal contributions that have advanced our ability to prepare, characterize, theoretically model, and technologically exploit this ...
H. Feng   +4 more
semanticscholar   +1 more source

SILATRANE-CONTAINING POLYMETHACRYLATES

open access: yesТонкие химические технологии, 2019
The possibility of synthesizing silatrane-containing polymers was investigated using three different synthetic methods: the formation of silatrane fragments from polymers with trialkoxysilyl groups, the copolymerization of silatrane-containing monomers ...
V. V. Istratov   +3 more
doaj   +1 more source

Novel Composite Membranes Based on Chitosan Copolymers with Polyacrylonitrile and Polystyrene: Physicochemical Properties and Application for Pervaporation Dehydration of Tetrahydrofuran

open access: yesMembranes, 2019
Pervaporation has been applied for tetrahydrofuran (THF) dehydration with novel composite membranes advanced by a thin selective layer composed of chitosan (CS) modified by copolymerization with vinyl monomers, acrylonitrile (AN) and styrene, in order to
Ksenia V. Otvagina   +6 more
doaj   +1 more source

Robust nanogenerators based on graft copolymers via control of dielectrics for remarkable output power enhancement

open access: yesScience Advances, 2017
Robust nanogenerator based on poly(tert-butyl acrylate)–grafted PVDF copolymers via dielectric constant control is demonstrated. A robust nanogenerator based on poly(tert-butyl acrylate) (PtBA)–grafted polyvinylidene difluoride (PVDF) copolymers via ...
Jae Won Lee   +10 more
semanticscholar   +1 more source

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

open access: yesMembranes, 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   +7 more
doaj   +1 more source

Laboratory Research of Degradation of Polyhydroxyalkanoates of Different Chemical Structure in Soil [PDF]

open access: yesЖурнал 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

open access: yesChimica 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   +6 more
doaj   +1 more source

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