Free radical polymerization

Ebook "Molecularly imprinted polymers in biotechnology" has stimulated the development of synthetic materials that can be designed to have tailor-made molecular selectivity. Molecular imprinting, a synthetic technique that uses molecular templates to create selective binding sites in cross-linked polymers, has become one of the most efficient methods for preparation of selective recognition materials.

237p tudohanhtau1006 29-03-2024 3 1   Download

Ebook "Principles of polymer chemistry (Third edition)" undergoes a change of character in the third edition. Where earlier editions covered organic polymer chemistry, the third edition covers both physical and organic chemistry. Thus kinetics and thermodynamics of polymerization reactions are discussed. This textbook contains review questions at the end of every chapter, references for further reading, and numerous examples of commercially important processes.

810p coduathanh1122 27-03-2024 4 1   Download

Ebook "Radical polymerization: Kinetics and mechanism" from the successful Macromolecular Symposia series presents the contributions from the IUPAC-sponsored International Symposium on "Radical Polymerization: Kinetics and Mechanism", held in Il Ciocco, Italy, in September, 2006. This was the fourth within the series of so-called SML conferences, which are the major scientific forum for addressing kinetic and mechanistic aspects of free-radical polymerization and controlled radical polymerization.

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Ebook "Handbook of radical polymerization" aims to capture the explosion of progress made in free radical polymerization in the past 15 years. Conventional radical polymerization (RP) and living radical polymerization (LRP) mechanisms receive extensive coverage together with all the other important methods of controlling aspects of radical polymerization.

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Ebook "Handbook of RAFT polymerization" spanning the entire field from fundamentals to applications in material science, this one-stop source is the first comprehensive reference for polymer, physical and surface chemists, materials scientists, chemical engineers, and those chemists working in industry.

555p coduathanh1122 27-03-2024 2 1   Download

Part 2 book "Engineering of polymers and chemical complexity ( Vol 1 - Current state of the art and perspectives)" includes content: CNT/polymer nanocomposites - A detailed review on mathematical modeling and experimental case studies; orientation controlled immobilization strategy for B galactosidase on alginatebeads; preparation, characterization, and evaluation of waterswellable hydrogel via grafting cross linked polyacrylamide chains onto gelatin backbone by free radical polymerization,...and other contents.

325p muasambanhan09 12-03-2024 5 1   Download

Part 1 book "Chemical engineering of polymers - Production of functional and flexible materials" includes content: Copolymerization of aniline P-phenylenediamine in an acetic acid medium; free radical frontal polymerization of acrylamide in the presence of nano and micro additives; influence of ph on the structuring of zetag 9014® type of cationic polymers; aromatic azides and pentazenes in multistep radical polymerization; synthesis and adsorption properties of 4 aminostyrene and methacrylic acid copolymer, immobilized in situ on silica surface;... and other contents.

237p muasambanhan09 16-03-2024 4 1   Download

Ebook "Applications of EPR in radiation research" presented in eight themes: elementary radiation processes (in situ and low temperature radiolysis, quantum solids); solid state radiation chemistry (crystalline, amorphous and heterogeneous systems); biochemistry, biophysics and biology applications (radicals in biomaterials, spin trapping, free-radical-induced DNA damage); materials science (polymeric and electronic materials, materials for treatment of nuclear waste, irradiated food);...

766p nhanphanguyet 28-01-2024 5 2   Download

Ebook "Polymers: Chemistry and physics of modern materials" provide a broad-based, high-information text at an introductory, reader-friendly level that illustrates the multidisciplinary nature of polymer science. Adding or amending roughly 50% of the material, this new edition strengthens its aim to contribute a comprehensive treatment by offering a wide and balanced selection of topics across all aspects of the chemistry and physics of polymer science, from synthesis and physical properties to applications.

520p loivantrinh 29-10-2023 8 2   Download

Ebook "Introduction to industrial polyethylene: Properties, catalysts, processes" providing industrial chemists and engineers a valuable reference tool that covers fundamental features of polyethylene technology; identifies the fundamental types of polyethylene and how they differ; lists markets, key fabrication methods, and the major producers of polyethylene; provides biodegradable alternatives to polyethylene.

156p loivantrinh 29-10-2023 7 4   Download

The aim of this work is to research the interactions of water-soluble nitrogen-containing copolymers with essential amino acids in aqueous media. For this, poly(N-vinylformamide-co-N-vinylimidazole) and poly(N-vinylcaprolactam-co-N-vinylimidazole) random copolymers were synthesized by free radical polymerization. The products obtained are characterized by GPC, DLS, and FTIR. The copolymers have a narrow molecular weight distribution and low dispersity.

10p lyhuyenthu 31-01-2023 4 2   Download

In this study, the performance of chitosan based semi-IPN nanocomposite hydrogels for the adsorptive removal of basic violet 14 (BV14) from aqueous solution has been explored. Batch adsorption studies were conducted to determine the effect of various parameters on BV14 adsorption, and optimum values were reported as pH of 8, the adsorbent dosage of 0.025 g, initial BV14 concentration of 5 mg L–1 and contact time of 90 min at a temperature of 25 °C.

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A novel thioxanthone-anthracene (TX-A) photoinitiator possessing an octyl group, TX-A-Oct, as amphipathic photoinitiator was synthesized by click chemistry. Its ability to initiate photopolymerization of various monomers, namely methyl methacrylate (MMA), acryl amide (Am), butyl acrylate (BA), styrene (St), and a multifunctional monomer trimethylolpropane triacrylate (TMPTA), was examined in both the presence and absence of air.

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Poly(N-isopropylacrylamide-co-allyl acetic acid) [p(NIPAM-co-AAAc)] microgels were synthesized in aqueous medium by free radical emulsion polymerization using N-isopropylacrylamide as monomer, allylacetic acid as comonomer, and N,N-methylene-bis-acrylamide as cross-linker. Silver nanoparticles were fabricated inside the microgels by in situ reduction of silver ions. Microgels were analyzed by UV-visible spectroscopy, FTIR, XRD, TEM, and DLS. The formation of silver nanoparticles was confirmed by UV-visible spectroscopy.

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Boron methacrylate (BAc) monomer was synthesized via an esterification reaction. Boric acid, neopentyl glycol, and 2-hydroxyethyl methacrylate (HEMA) were reacted to obtain boron-containing acrylic monomer. Characterization was achieved by FT-IR, 13 C NMR, 1 H NMR, and 11 B NMR and the results for the synthesized monomer were compared to those for HEMA. Homopolymer and copolymers with styrene (St) were synthesized via free radical polymerization. The properties of the synthesized styrene copolymers were investigated using several techniques.

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This study reports for the first time the effect of different sodium halide salts (NaClO4, NaI, and Na2CO3) in the low concentration range (in the range of 10 −7 –1 M) on the swelling behavior of photo-crosslinked, surfaceimmobilized poly(N -isopropyl acrylamide) (PNIPAAm) terpolymer layers. PNIPAAm terpolymer (consisting of N - isopropylacrylamide, methacrylic acid, and 4-methacryloxybenzophenone) was synthesized via free radical polymerization. The PNIPAAm terpolymer layers were prepared on gold substrates via spin coating and crosslinked and surface attached via UV radiation.

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The obtained polymer also exhibited photochromic properties under UV irradiation both in solution and in solid state film. We are reliable believe that organicbased photoredox catalysts will enable new applications for controlled radical polymerizations in both small molecules and polymer chemistry.

11p tieuthi3006 16-03-2018 36 0   Download