Topotactic solid-state polymerization of 3-aminocrotonamide by radiation

1996-04-30
Usanmaz, Ali
Melad, OK
Show full item record
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
271
views
0
downloads
Radiation-induced solid-state polymerization of 3-aminocrotonamide (3-amino-2-butenamide) was carried out at room temperature, in open air atmosphere and under vacuum condition. The polymer obtained was white powder, soluble in methanol, but insoluble in water. The nature of polymers were investigated by IR, UV, x-ray, DP-MS, and elemental analysis to elucidate the mechanism of the polymerization. The polymer was crystalline with melting point in the range of 245-255 degrees C. The cell parameters and space group of monomer and polymers were determined from powder x-ray diffraction patterns. The similarity of crystal structures of monomer and polymer indicated a topotactic polymerization. It was shown by spectroscopic investigations and elemental analyses that the polymerization proceeds by condensation reaction with evolution of one mole ammonia per two combined moles of monomer through a free radical mechanism. (C) 1996 John Wiley & Sons, Inc.
Organic Chemistry, Materials Chemistry, Polymers and Plastics
https://hdl.handle.net/11511/56412
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
Graduate School of Natural and Applied Sciences, Article

Suggestions

Topotactic solid-state polymerization of acenaphtylene by radiation
Usanmaz, Ali; Baytar, N (Informa UK Limited, 1998-01-01)
The radiation-induced solid-state polymerization of acenaphthylene was carried out under vacuum at room temperature. The monomer and obtained polymer samples were investigated by UV, FTIR, DSC, TG, and powder X-ray diffraction methods to characterize the polymer and elucidate the polymerization mechanism. The polymer samples were crystalline with melting points ranging in 380-390 degrees C interval. Polymerization takes place through vinyl groups by a radical mechanism and crystal structure of monomer and p...
Crystal structure effect in radiation induced solid state polymerization of methacrylamide
Usanmaz, Ali; Kafadar, AB (Informa UK Limited, 2004-01-01)
Radiation induced solid state polymerization of methacrylamide was carried out, opened to atmosphere and under vacuum conditions at room temperature. The white colored powder polymers obtained were insoluble in most common organic solvents such as carbon tetrachloride, dimethysulfoxide, acetone, etc. The polymers were characterized by IR, direct pyrolysis mass spectrometer (DP-MS), XRD, TGA, and DSC methods. The mechanism of the polymerization was elucidated from these results. There were no definite effect...
POLYMERIZATION OF 1-ETHYNYL-1-CYCLOHEXANOL BY RADIATION, ELECTROINITIATION, AND CHEMICAL CATALYSTS
Usanmaz, Ali; KIZILIRMAK, N (Informa UK Limited, 1992-01-01)
Solid-state polymerization of 1-ethynyl-1-cyclohexanol was carried out by irradiation in vacuum and in open air at 20-degrees-C. Radiation-induced polymerization was also done in a benzene solution. The products were mixtures of oligomers and polymers. IR, NMR, UV, and x-ray investigations showed the initial formation of trimer, oligomer, and polymer. The polymer fraction increased with an increase of conversion. Electroinitiated polymerization gave soluble and insoluble fractions. The soluble fraction was ...
Polymerization of 1,2-epoxy-4-epoxyethylcyclohexane
Usanmaz, Ali; Asaid, Adel (Wiley, 1986-12)
Radiation‐induced polymerization of 1,2‐epoxy‐4‐epoxyethylcyclohexane (EECH) has been carried out at different temperatures in solid and liquid states. Activation energy was calculated from Arrhenius plot and ionic mechanism was proposed. Molecular weights for some polymer samples were determined by cryscopic method and compared with their intrinsic viscosities. Cationic polymerization of EECH initiated by BF3 · O(C2H5)2 and anionic polymerization initiated by NaOH are also studied. Two epoxy rings can be o...
Synthesis and characterization of conducting copolymers of (S)-2-methylbutyl-2-(3-thienyl)acetate with pyrrole and thiophene
Levent, A; Toppare, Levent Kamil; Cianga, I; Yagci, Y (Wiley, 2003-05-30)
Polymerization of methylbutyl-2-(3-thienyl)-acetate (MBTA) was achieved by constant current electrolysis at low temperature. Subsequently, the syntheses of block copolymers of polyMBTA were accomplished in the presence of either pyrrole or thiophene by constant potential electrolysis. Moreover, the copolymer of MBTA with thiophene was obtained with constant potential electrolysis.
Citation Formats
A. Usanmaz and O. Melad, “Topotactic solid-state polymerization of 3-aminocrotonamide by radiation,” JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, pp. 1087–1093, 1996, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/56412.
METU IIS - Integrated Information Service open@metu.edu.tr