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Crystal structure effect in radiation induced solid state polymerization of methacrylamide
Date
2004-01-01
Author
Usanmaz, Ali
Kafadar, AB
Metadata
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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 effects of oxygen on the polymerization mechanism. The limiting diffusion of oxygen into the material is due to the close packing of monomer molecules. Polymerization proceeds on the monomerpolymer interface by the opening of the vinyl bond. The polymer obtained was amorphous and did not give a melting peak in DSC thermogram. From the experimental data, it was shown that the polymer gave a side group cyclization upon thermal treatment.
Subject Keywords
Materials Chemistry
,
General Chemistry
,
Polymers and Plastics
,
Ceramics and Composites
URI
https://hdl.handle.net/11511/51616
Journal
JOURNAL OF MACROMOLECULAR SCIENCE-PURE AND APPLIED CHEMISTRY
DOI
https://doi.org/10.1081/ma-120028474
Collections
Graduate School of Natural and Applied Sciences, Article
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A. Usanmaz and A. Kafadar, “Crystal structure effect in radiation induced solid state polymerization of methacrylamide,”
JOURNAL OF MACROMOLECULAR SCIENCE-PURE AND APPLIED CHEMISTRY
, pp. 387–399, 2004, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/51616.