Influence of defects on the infrared spectra of polymers Presented in part at the Symposium on Spectroscopy of Polymers, American Chemical Society, Chicago, September 1967.
dc.contributor.author | Opaskar, C. G. | en_US |
dc.contributor.author | Krimm, Samuel | en_US |
dc.date.accessioned | 2006-04-28T18:15:35Z | |
dc.date.available | 2006-04-28T18:15:35Z | |
dc.date.issued | 1969-01 | en_US |
dc.identifier.citation | Opaskar, C. G.; Krimm, S. (1969)."Influence of defects on the infrared spectra of polymers Presented in part at the Symposium on Spectroscopy of Polymers, American Chemical Society, Chicago, September 1967. ." Journal of Polymer Science Part A-2: Polymer Physics 7(1): 57-76. <http://hdl.handle.net/2027.42/38770> | en_US |
dc.identifier.issn | 0449-2978 | en_US |
dc.identifier.issn | 1542-9377 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/38770 | |
dc.description.abstract | For an infinitely repeated regular polymer chain structure the only vibrations which are optically active are those in which the phase of the motion is the same in each unit (the factor-group modes). Frequencies for which the phase difference is nonzero are optically inactive but can become activated by the presence of defects in the chain. Such defects would normally be chemical impurities or conformational irregularities in the chain. A simple theory is developed which shows that for a dilute system of defects the major characteristics determining possible activation of the nonfactor-group modes are: ( 1 ) the strength of the coupling between the defect vibration and the vibrations of the neighboring chain, and ( 2 ) whether or not the natural frequency of the defect vibration lies inside a lattice band of the regular chain. An analysis of the low- and high-frequency regions of the spectrum of low-density polyethylene, based on the above considerations, indicates that several features of the spectrum can be associated with defect-induced absorption. A similar explanation can account for certain intensity changes in the C[bond]Cl stretching region of syndiotactic poly(vinyl chloroide) when this polymer is submitted to mechanical treatment. | en_US |
dc.format.extent | 955335 bytes | |
dc.format.extent | 3118 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | |
dc.publisher | John Wiley & Sons, Inc. | en_US |
dc.subject.other | Physics | en_US |
dc.subject.other | Polymer and Materials Science | en_US |
dc.title | Influence of defects on the infrared spectra of polymers Presented in part at the Symposium on Spectroscopy of Polymers, American Chemical Society, Chicago, September 1967. | en_US |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | en_US |
dc.subject.hlbsecondlevel | Materials Science and Engineering | en_US |
dc.subject.hlbtoplevel | Engineering | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Harrison M. Randall Laboratory of Physics, University of Michigan, Ann Arbor, Michigan 48640 | en_US |
dc.contributor.affiliationum | Harrison M. Randall Laboratory of Physics, University of Michigan, Ann Arbor, Michigan 48640 | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/38770/1/160070105_ftp.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1002/pol.1969.160070105 | en_US |
dc.identifier.source | Journal of Polymer Science Part A-2: Polymer Physics | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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