Results 21 to 30 of about 41,157 (201)

Methylenelactide: vinyl polymerization and spatial reactivity effects

open access: yesBeilstein Journal of Organic Chemistry, 2016
The first detailed study on free-radical polymerization, copolymerization and controlled radical polymerization of the cyclic push–pull-type monomer methylenelactide in comparison to the non-cyclic monomer α-acetoxyacrylate is described. The experimental
Judita Britner, Helmut Ritter
doaj   +1 more source

Copolymerization of ε-caprolactone with Epichlorohydrin by a Green Catalyst, Maghnite [PDF]

open access: yes, 2012
Most of the cationic initiators used in the synthesis of copolymers are expensive. They may be poisoned by products of the reaction or impurities present in the monomer feed, and contain heavy metals, such as chromium, mercury, antimony, etc., that ...
Bouchama, Abdelghani   +1 more
core   +1 more source

A New Dinuclear Cobalt Complex for Copolymerization of CO2 and Propylene Oxide: High Activity and Selectivity

open access: yesMolecules, 2020
Based on the ligand H4Salen-8tBu (salen-4), a new dinuclear cobalt complex (salen-4)[Co(III)TFA]2 (salen-4 = 3,5-di-tert-butylsalicylaldehyde-3,3′-diaminobiphenylamine; TFA = trifluoroacetic acid) has been firstly synthesized and characterized.
Wen-Zhen Wang   +6 more
doaj   +1 more source

Grafted copolymerization of N-phenylmaleimide and styrene in porous polyvinyl chloride particles suspended in aqueous solution

open access: yesDesigned Monomers and Polymers, 2019
N-phenylmaleimide (N-PMI) and its precursor, (Z)-4-oxo-4-(phenylamino)but-2-enoic acid, were synthesized from aniline and maleic anhydride. Copolymerization between N-phenylmaleimide and styrene was initiated in micropores and outside surface of porous ...
Yang Lifu Long   +3 more
doaj   +1 more source

Efficient sequestration of boron from liquid phase by amidoxime-functionalized poly(acrylonitrile-co-acrylic acid): experimental and modelling analyses

open access: yesWater Science and Technology, 2022
This study aims to produce amidoxime-modified poly(acrylonitrile-co-acrylic acid) using an optimized method and to investigate the performance of amidoxime-modified poly(acrylonitrile-co-acrylic acid) on the adsorption of boron ions in batch operations ...
Abel Adekanmi Adeyi   +4 more
doaj   +1 more source

THE INFLUNCE OF TEMPERATURE MODE ON KINETICS OF SODIUM METHACRYLATE AND METHACRYLIC ACID AMIDE COPOLYMERIZATION

open access: yesТонкие химические технологии, 2016
Experimental studies of sodium methacrylate and methacrylamide copolymerization in aqueous solutions with a total monomer content of 34-50% were accomplished. Potassium persulfate was used as the initiator.
А. А. Lipin   +2 more
doaj   +1 more source

On the formation of porous structure during the synthesis of macroporous copolymers based on glycidyl methacrylate [PDF]

open access: yesHemijska Industrija, 2004
The results obtained during the investigation of the influence of the inert component composition and the type of copolymerization reaction on the porosity parameters of the macroporous copolymer of glycidyl methacrylate (GMA) and ethylene glycol ...
Jovanović Slobodan M.   +1 more
doaj   +1 more source

Evaluation of some physical properties of the copolymerized temporary crown and bridge auto–cured acrylic resin (Reinforcement) [PDF]

open access: yesAl-Rafidain Dental Journal, 2007
Aims: To evaluate some of the physical properties which are transverse strength, tensile strength, surface hardness, water sorption and solubility of the auto–cured acrylic resin when copolymerized with epoxy resin at two different ratios 10% and 20 ...
Lamia T Rejab   +2 more
doaj   +1 more source

Comparison of Ethylene/1-Hexene Copolymers Microstructures Synthesized by Homogeneous and Heterogeneous Metallocene Catalysts [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2013
The substituted (bis-2-PhIndZrCl2) and non-substituted (bis-IndZrCl2) indenylbased metallocene catalysts were synthesized and used in homogenous and heterogeneous forms for copolymerization of ethylene and 1-hexene.
Saeid Ahmadjo
doaj   +1 more source

Preparation and Properties of Poly(vinyl acetate) Adhesive Modified with Vinyl Versatate

open access: yesMolecules, 2023
A series of vinyl versatate (VV10) modified poly(vinyl acetate) adhesive (HVPVAc) were prepared using soap-free emulsion polymerization. Attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy was used to characterize the structure
Guoyan Ma   +6 more
doaj   +1 more source

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