Recommanded Product: 100-51-6. Pihtili, G; Demirelli, K in [Pihtili, Guzin] Munzur Univ, Pertek Sakine Genc Vocat Sch, Med Serv & Tech, Tunceli, Turkey; [Demirelli, Kadir] Firat Univ, Dept Chem, Fac Sci, Elazig, Turkey published Synthesis of comb-type block copolymers by grafting through method: electrical properties and determination of activation energy via conductivity in 2020.0, Cited 40.0. The Name is Benzyl Alcohol. Through research, I have a further understanding and discovery of 100-51-6.
Poly[epsilon-CL-b-(MMA-comb-EMA)]comb-type polymers were synthesized by ATRP and epsilon-caprolactone macroinitiator and macromonomer. Methyl methacrylate macromonomer was synthesized from acylation reaction of methacryloyl chloride with PMMA ended 7-hydroxy coumarin. The macroinitiator was prepared from the reaction of chlorine acetyl chloride P(epsilon-CL). The synthesized polymers were characterized by FT-IR, H-1-NMR and C-13-NMR techniques. The average molecular weight and molecular weight distribution of polymers were measured by GPC method. Thermal properties of samples were studied by DSC/TGA techniques. Dielectric and Ac conductivity measurements were performed. Dielectric constant (epsilon’), dielectric loss factor (epsilon|) and conductivity behaviors of comb-type polymer were measured at room temperature between the frequency of 100-2000 Hz and over the temperature range 303-413 K at 1 kHz reported as compared with each other. Besides, their effects on the electrical properties by doping with EuCl3 for some of the comb copolymers were and were investigated. The activation energy (E-a) was calculated from conductivity. We reported it was determined that the (epsilon’) and (epsilon|) values decreased with increasing frequency. There are also many application areas for comb polymers for example; nanotechnology, medicine. The aim of this study is to synthesize comb-type copolymers in different compositions and to investigate their electrical properties.
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Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles