Results 21 to 30 of about 83,698 (348)

Synthesis and properties of fluorinated copolymerized polyimide films [PDF]

Polímeros, 2020
Two series of fluorinated copolymerized polyimide films with different dianhydride ratios were prepared via the conventional two-step method by using 4,4-oxydianiline(ODA) as the diamine monomer, 4,4'-(hexafluoroisopropylidene) diphthalic anhydride(6FDA),
Chuanhao Cao, Lizhu Liu, Xinyu Ma, Xiaorui Zhang, Tong Lv   +4 more
doaj   +1 more source

Nanostructure Engineering via Intramolecular Construction of Carbon Nitride as Efficient Photocatalyst for CO₂ Reduction

Nanomaterials, 2021
Light-driven heterogeneous photocatalysis has gained great significance for generating solar fuel; the challenging charge separation process and sluggish surface catalytic reactions significantly restrict the progress of solar energy conversion using a ...
Muhammad Sohail, Tariq Altalhi, Abdullah G. Al-Sehemi, Taha Abdel Mohaymen Taha, Karam S. El-Nasser, Ahmed A. Al-Ghamdi, Mahnoor Boukhari, Arkom Palamanit, Asif Hayat, Mohammed A. Amin, Wan Izhan Nawawi Bin Wan Ismail   +10 more
doaj   +1 more source

Copolymers Derived from Two Active Esters: Synthesis, Characterization, Thermal Properties, and Reactivity in Post-Modification

Molecules, 2022
Copolymers with two distinguished reactive repeating units are of great interest, as such copolymers might open the possibility of obtaining selective and/or consequent copolymers with different chemical structures and properties.
Thi Phuong Thu Nguyen, Nadine Barroca-Aubry, Caroline Aymes-Chodur, Diana Dragoe, Gaëlle Pembouong, Philippe Roger   +5 more
doaj   +1 more source

Synthesis of biodegradable polyesteramides with pendant functional groups [PDF]

, 1992
Morpholine-2,5-dione derivatives having substituents with benzyl-protected carboxylic acid, benzyloxycarbonyl-protected amine and p-methoxy-protected thiol groups, respectively, were prepared in 29-58% yield by cyclization of the corresponding N-[(2RS ...
Dijkstra, Pieter J., Feijen, Jan, Veld, Peter J.A. in 't   +2 more
core   +3 more sources

Estudio de copolimerización injerto del acrilato de butilo sobre almidón empleando sistema iniciador redox

Química Nova, 2014
The mixture of synthetic and natural materials yields a material with improved physical-chemical properties. One way of obtaining this kind of material is through graft copolymerization.
Alfredo Carlos Martinez-Arellano, Jose Luis Rivera-Armenta, Ana Maria Mendoza-Martínez, Nancy Patricia Díaz-Zavala, Jose Guillermo Sandoval Robles, Ernestina Elizabeth Banda-Cruz   +5 more
doaj   +1 more source

Methylenelactide: vinyl polymerization and spatial reactivity effects

Beilstein 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

Study on ethylene/1-hexene copolymerization catalyzed by α-diimine nickel catalysts with different ligands

Magnetic Resonance Letters, 2021
The structure of polyolefin has an important influence on its performance and application. Ethylene/1-hexene copolymerization is one of the important ways to control the structure of the polyolefin.
Yusheng Xing, Haojie Yu, Li Wang, Nan Wang, Lei Zhu, Ruixue Liang, Md Alim Uddin   +6 more
doaj   +1 more source

Molecular catalysis for precise olefin polymerization and ROP 2015 [PDF]

, 2016
The growth of emerging markets, particularly in the Far East, has fuelled the demand for new plastic materials. This in turn has stimulated both academic and industrial interest in the design of catalyst systems for which new Intellectual Property (IP ...
Redshaw, Carl
core   +3 more sources

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

Molecules, 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, Kai-Yue Zhang, Xin-Gang Jia, Li Wang, Lei-Lei Li, Wei Fan, Li Xia   +6 more
doaj   +1 more source

Responsive glyco-poly(2-oxazoline)s: synthesis, cloud point tuning, and lectin binding [PDF]

, 2011
A new sugar-substituted 2-oxazoline monomer was prepared using the copper-catalyzed alkyne-azide cycloaddition (CuAAC) reaction. Its copolymerization with 2-ethyl-2-oxazoline as well as 2-(dec-9-enyl)-2-oxazoline, yielding well-defined copolymers with ...
Adams N., Ambrosi M., Aoi K., Aoi K., Aoi K., Aoi K., Bassiri T. G., Bloksma M. M., Campos L. M., Cesana S., Christine Weber, Christova D., Collins B. E., Cortez M. A., Diehl C., Dimick S. M., Gabius H. J., Hoogenboom R., Hoogenboom R., Huber S., Kagiya T., Kempe K., Kempe K., Knop K., Kobayashi S., Kobayashi S., Kobayashi S., Kristian Kempe, Krzysztof Babiuch, Lambermont-Thijs H. M. L., Lin P. Y., Lundquist J. J., Michael Gottschaldt, Mikata Y., Narain R., Richard Hoogenboom, Saegusa T., Saegusa T., Seeliger W., Slavin S., Stillman B. N., Takasu A., Taubmann C., Ting S. R. S., Tomalia D. A., Tsutsumiuchi K., Ulrich S. Schubert, Vazquez-Dorbatt V., Weber C., Wiesbrock F., Wiesbrock F., Witte H.   +51 more
core   +2 more sources