Results 11 to 20 of about 26,198 (157)

Study of radical polymerization of diallyl monomer based on allyl bromide and piperidine [PDF]

open access: yesE3S Web of Conferences, 2023
In this article, kinetic feature of N, N-diallylpiperidine bromide radical polymerization is investigated. Orders of reaction are determined by the monomer and by the initiator.
Safaev U.A.   +2 more
doaj   +1 more source

"Research progress in preparation of thermoplastic elastomers by living controlled polymerization"

open access: yesHecheng xiangjiao gongye, 2023
Starting with polymerization methods such as anionic polymerization, cationic polymerization, ring-opening polymerization, and controlled free radical polymerization, the research progress of different types of thermoplastic elastomer synthesis ...
ZHANG hao1, ZHANG Hua-qiang2, LIU Ruo-fan1, ZHAO Zhi-chao2, JIN Yu-shun1, LI Fu-chong2, WU Yi-bo1
doaj   +1 more source

Photoinitiated Cationic Ring-Opening Polymerization of Octamethylcyclotetrasiloxane

open access: yesMolecules, 2023
Photochemical techniques have recently been revitalized as they can readily be adapted to different polymerization modes to yield a wide range of complex macromolecular structures.
Zehra Gul Coban   +2 more
doaj   +1 more source

Renewable Polymers Derived from Limonene

open access: yesChemEngineering, 2023
Renewable natural and synthetic basic substances can be used to produce biodegradable polymers. Several methods of the polymerization of terpene limonene have been evaluated.
Roman Aleksandrovich Lyubushkin   +5 more
doaj   +1 more source

Cationic polymerization of β-pinene in the presence of alkylaluminum chlorides as catalysts

open access: yesЖурнал Белорусского государственного университета: Химия, 2020
Cationic polymerization of β-pinene, a naturally occurring monomer, was studied in the presence of different alkylaluminum chlorides ((iBu)3Al2Cl3, Et3Al2Cl3 и Мe2AlCl) in the solvent mixture dichloromethane/methylcyclohexane (DCM/MCH) at –78 °C.
Maksim I. Hulnik   +2 more
doaj   +1 more source

Cationic Polymerization of Phenylbutadienes. III. Cationic Polymerization of 2-Phenyl-1,3-butadiene [PDF]

open access: yesPolymer Journal, 1976
2-Phenylbutadiene was polymerized by SnCl4, BF3OEt2, and Ph3CSnCl5 in ethylene dichloride. The kinetic study showed a rapid initiation in the cases of SnCl4 and BF3OEt2, but a rather slow initiation in the case of Ph3CSnCl5. The initial rate of polymerization in the cases of SnCl4 and BF3OEt2 or the maximum rate in the case of Ph3CSnCl5 was expressed ...
Asami, Ryuzo, Hasegawa, Kan-ichi
openaire   +1 more source

Selective Synthesis, Characterization and Kinetics Studies of poly(α-Methyl styrene) induced by Maghnite-Na+ Clay (Algerian MMT)

open access: yesBulletin of Chemical Reaction Engineering & Catalysis, 2016
A new and efficient catalyst of Na-Montmorillonite (Na+-MMT) was employed in this paper for α-methylstyrene (AMS) cationic polymerization. Maghnite clay, obtained from Tlemcen Algeria, was investigated to remove heavy metal ion from wastewater. “Maghnite-
Moulkheir Ayat   +2 more
doaj   +1 more source

The Cationic Ring-Opening Polymerization of Tetrahydrofuran with 12-Tungstophosphoric Acid

open access: yesMolecules, 2010
The cationic ring-opening polymerization reaction of tetrahydrofuran at 20 ºC was catalyzed by H3PW12O40·13H2O as solid acid catalyst. The effect of the proportions of acetic anhydride and catalyst, reaction time and support on the polymerization ...
Hassan Al-Shahri   +2 more
doaj   +1 more source

Anionic Polymerization Using Flow Microreactors

open access: yesMolecules, 2019
Flow microreactors are expected to make a revolutionary change in chemical synthesis involving various fields of polymer synthesis. In fact, extensive flow microreactor studies have opened up new possibilities in polymer chemistry including cationic ...
Yusuke Takahashi, Aiichiro Nagaki
doaj   +1 more source

Investigation of cationic ring-opening polymerization of 2-oxazolines in the “green” solvent dihydrolevoglucosenone

open access: yesBeilstein Journal of Organic Chemistry, 2023
For about the last ten years, poly(2-oxazoline)s have attracted significant attention as potential material for biomedical applications in, e.g., drug delivery systems, tissue engineering and more.
Solomiia Borova, Robert Luxenhofer
doaj   +1 more source

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