POLYCHLOROPRENE STRUCTURE STUDY. II. A QUANTITATIVE INFRARED SPECTROSCOPIC METHOD FOR POLYCHLOROPRENE MICROSTRUCTURE INVESTIGATION,

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Abstract:

A quantitative ir spectroscopic determination was developed using low-mol.-wt. compds. cis-4-chloro-4-octene, cis-5-chloro-5 decene, trans-4-chloro-4-octene, and 2-chloro-1-hexens as model polychloroprene I units representing various modes of monomer unit addn. The concn. of representing various modes of monomer unit addn. The concn. of 1,4-cis, 1,4-trans, and 3,4-addn. modes was determined using corresponding 1653, 1662, and 1636cm max., respectively. The 1,2-addn. units were determined by the difference. The rubbers Nairit, Nairit KR, Nairit P, and Neoprene W prepd. with different regulators had 0.5 1,4-cis 12 1,4-trans 87 3,4 and 0.5 1,2 addn. units. Apparently the structure of the I chain prepd. by a free-radical mechanism is independent of the nature of the polymn. regulator.

Author(s):
Azhandzhyan, E. O. ; Melkonyan, L. G.
Author Organization(s):
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
Supplementary Note:
Edited trans. of Armyanskii Khimicheskii Zhurnal (USSR) v20 n2 p98-105 1967, by L. Heenan.
Annotation:
Polychloroprene structure study. II. A quantitative infrared spectroscopic method for polychloroprene microstructure investigation--Translation.
Pagination:
0013

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
FTD-HT-23-950-68
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*CHLOROPRENES, *INFRARED SPECTROSCOPY), (*ELASTOMERS, INFRARED SPECTROSCOPY), MOLECULAR STRUCTURE, MOLECULAR ISOMERISM, INFRARED SPECTRA, USSR, ALKENES
Field(s)/Group(s):
Elastomers and Rubber, Atomic and Molecular Physics and Spectroscopy
Keyword(s):
NEOPRENES, TRANSLATIONS
Report Date:
1968 Nov 15