Results 11 to 20 of about 25,468 (243)

Renewable Polymers Derived from Limonene

ChemEngineering, 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, Natalia Igorevna Cherkashina, Dar’ya Vasil’yevna Pushkarskaya, Dar’ya Sergeyevna Matveenko, Alexander Sergeevich Shcherbakov, Yuliya Sergeevna Ryzhkova   +5 more
doaj   +1 more source

Recent Developments of Versatile Photoinitiating Systems for Cationic Ring Opening Polymerization Operating at Any Wavelengths and under Low Light Intensity Sources

Molecules, 2015
Photoinitiators (PI) or photoinitiating systems (PIS) usable in light induced cationic polymerization (CP) and free radical promoted cationic polymerization (FRPCP) reactions (more specifically for cationic ring opening polymerization (ROP)) together ...
Jacques Lalevée, Haifaa Mokbel, Jean-Pierre Fouassier   +2 more
doaj   +1 more source

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

Журнал 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, Olga V. Kuharenko, Sergei V. Kostjuk   +2 more
doaj   +1 more source

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

Bulletin 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, Mohamed Belbachir, Abdelkader Rahmouni   +2 more
doaj   +1 more source

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

Molecules, 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, Salem S. Al-Deyab, Ahmed Aouissi   +2 more
doaj   +1 more source

Anionic Polymerization Using Flow Microreactors

Molecules, 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

Beilstein 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

Novel Carbazole Skeleton-Based Photoinitiators for LED Polymerization and LED Projector 3D Printing

Molecules, 2017
Radical chemistry is a very convenient way to produce polymer materials. Here, an application of a particular photoinduced radical chemistry is illustrated. Seven new carbazole derivatives Cd1–Cd7 are incorporated and proposed as high performance near-UV
Assi Al Mousawi, Patxi Garra, Frédéric Dumur, Thanh-Tuan Bui, Fabrice Goubard, Joumana Toufaily, Tayssir Hamieh, Bernadette Graff, Didier Gigmes, Jean Pierre Fouassier, Jacques Lalevée   +10 more
doaj   +1 more source

Synthesis of Epoxy Methacrylate Resin and Coatings Preparation by Cationic and Radical Photocrosslinking

Molecules, 2021
This work involves the synthesis of hybrid oligomers based on the epoxy methacrylate resin. The EA resin was obtained by the modification of industrial-grade bisphenol A-based epoxy resin and methacrylic acid has been synthesized in order to develop ...
Paulina Bednarczyk, Izabela Irska, Konrad Gziut, Paula Ossowicz-Rupniewska   +3 more
doaj   +1 more source

Cationic polymerization of styrene using iron-containing ionic liquid catalysts in an aqueous dispersed medium [PDF]

Polímeros
This work aims to study the cationic miniemulsion polymerization of styrene catalyzed by iron-containing imidazolium-based ionic liquids. The polystyrenes had very high number-average molar mass around 1300 kg mol-1 at 85 °C, molar-mass dispersity close ...
Gabriel Victor Simões Dutra, Weslany Silvério Neto, Pedro Henrique Hermes de Araújo, Claudia Sayer, Brenno Amaro da Silveira Neto, Fabricio Machado   +5 more
doaj   +2 more sources