Results 31 to 40 of about 6,932 (305)

Terpolymerization kinetics of methyl methacrylate or styrene/dodecyl methacrylate/octadecyl methacrylate systems [PDF]

Polymer International, 2006
AbstractThis study describes low‐conversion terpolymerization kinetic investigations of methyl methacrylate/dodecyl methacrylate/octadecyl methacrylate (MMA/DDMA/ODMA) and styrene/dodecyl methacrylate/octadecyl methacrylate (ST/DDMA/ODMA) systems. Terpolymerizations were performed isothermally (70–105 °C), in 1 mol dm−3 xylene solutions, using 0.01 mol
Jukić, Ante, Rogošić, Marko, Vidović, Elvira, Janović, Zvonimir   +3 more
openaire   +2 more sources

Thermal Optical Analysis of Cholesteryl Methacrylate and Methyl Methacrylate Copolymers [PDF]

Polymer Journal, 1985
As a side chain type of liquid crystalline polymer, the copolymers of cholesteryl methacrylate and butyl methacrylate were synthesized. When the mesomorphic behavior of the copolymers was examined with a polarized microscope, the observed transition temperatures were so much varied that the mesomorphic behavior had to be studied by thermal optical ...
Shoji, Kikuo, Nakajima, Yukio, Ueda, Eiichi, Takeda, Masatami   +3 more
openaire   +2 more sources

Concentration effects in the base-catalyzed hydrolysis of oligo(ethylene glycol)- and amine-containing methacrylic monomers

Designed Monomers and Polymers, 2017
Concentration effects in the base-catalyzed hydrolysis of water-soluble methacrylates (3-(N,N-dimethylaminoethyl) methacrylate (DMAEMA), 2-hydroxyethyl methacrylate (HEMA) and oligo(ethylene glycol) methacrylates (OEGMAs)) have been studied.
Oleg A. Kazantsev, Dmitry V. Orekhov, Alexey P. Sivokhin, Denis M. Kamorin, Maria V. Savinova   +4 more
doaj   +1 more source

Thermal Stability and Kinetics of Thermal Decomposition of Statistical Copolymers of N-Vinylpyrrolidone and Alkyl Methacrylates Synthesized via RAFT Polymerization

Journal of Chemistry, 2021
The thermal stability and the kinetics of thermal decomposition of statistical copolymers of N-vinylpyrrolidone (NVP) with the alkyl methacrylates, hexyl methacrylate (HMA) and stearyl methacrylate (SMA), were studied by Thermogravimetric Analysis (TGA ...
Theodoros Gikarakis, Ioannis Pappas, Pothiti Arvanitaki, Ekaterini Pantazi, Eleftheria Mitsoni, Nikoletta Roka, Marinos Pitsikalis   +6 more
doaj   +1 more source

A synthetic route to sulfobetaine methacrylates with varying charge distance

, 2014
A general synthetic strategy is described that enables access to a library of new sulfobetaine methacrylates starting from commercially available precursors.
Leonie Barner, Barner, Leonie, Christian Friedmann, Braese, Stefan, Joerg Lahann, Lahann, Joerg, Domenic Kratzer, Stefan Bräse, Kratzer, Domenic, Friedmann, Christian   +9 more
core   +1 more source

Chemical characterization of additively manufactured methacrylates for dental devices

, 2020
Despite the potential benefits of photopolymerization-based additive manufacturing, photochemical reactions in free-radical polymerization rarely proceed to completion, leading to the accumulation of residual monomer in polymer networks.
Love, Robert M, Alifui-Segbaya, Frank, Fidan, Ismail, George, Roy, White, Alan R, Bowman, Jasper   +5 more
core   +1 more source

Unwanted Skin Reactions to Acrylates: An Update

Cosmetics
Acrylates and methacrylates, though common in a wide variety of products, especially in the dental industry, can cause adverse skin reactions. These compounds, including 2-hydroxyethyl methacrylate, triethylene glycol dimethacrylate, and bisphenol A ...
Liborija Lugović-Mihić, Eva Filija, Vanja Varga, Lana Premuž, Ena Parać, Renata Tomašević, Ema Barac, Bruno Špiljak   +7 more
doaj   +1 more source

Ultrastructure of the elementary fibril in extended and condensed chromatin and in metaphase chromosomes

Acta Societatis Botanicorum Poloniae, 2015
The chromatin Ultrastructure of nuclei in ultrathin sections of root meristem in Cucurbita pepo - the species poor in DNA, and in Haemanthus katharinae - rich in DNA was compared.
M. J. Olszewska
doaj   +1 more source

Investigating the propagation kinetics of a novel class of nitrogen-containing methacrylates: Via PLP-SEC

, 2016
The Mark-Houwink-Kuhn-Sakurada parameters as well as Arrhenius parameters of the propagation rate coefficient for a new group of nitrogen-containing methacrylates were determined via triple detector SEC and pulsed laser polymerization-size exclusion ...
Kockler, K. B., Fleischhaker, F., Barner-Kowollik, C.   +2 more
core   +1 more source

Aldehyde Methacrylates Derived from Hydroxybenzaldehydes

, 1978
Aldehyde methacrylates were synthesized from the 3 isomeric hydroxybenzaldehydes by facile condensation reactions. The 3 monomers are relatively low-melting crystalline solids which can be liquified by simple admixture of the isomers.
Joseph M. Antonucci
core   +1 more source