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Structural analysis of syndiotactic polystyrene

Journal Article:

Abstract

Since the stereostructure of a high-molecular compound includes three types of isotactic, atactic and sydiotactic structures, a high-molecular compound with excellent properties can be produced by controlling the stereogularity of the compound with the identical composition. The stereoregularity of a stereogular polystyrene, or syndiotactic polystyrene (SPS), which had been successfully synthesized recently was quantitatively determined and the open chain structure by polymerization was investigated by nuclear magnetic resonance spectroscopy. Two SPSs were synthesized from cis-beta-d/sub/1-styrene and trans-beta-d/sub/1-styrene with alpha, beta, beta-d/sub/3-styrene. The results of spectral analysis of these two SPSs indicate that the former is of trans-conformation and the latter is of gauche conformation and that accordingly the open chain structure by polymerization of SPS is of cis-open chain and SPS has a planar zigzag structure even in the solution. (5 figs, 9 refs)
Authors:
Publication Date:
Sep 01, 1988
Product Type:
Journal Article
Reference Number:
NEDO-88-920259; EDB-89-040794
Resource Relation:
Journal Name: Idemitsu Sekiyu Gijutsu; (Japan); Journal Volume: 31:5
Subject:
36 MATERIALS SCIENCE; POLYSTYRENE; CONFORMATIONAL CHANGES; MOLECULAR STRUCTURE; STRUCTURAL CHEMICAL ANALYSIS; SYNTHESIS; NMR SPECTRA; NUCLEAR MAGNETIC RESONANCE; STEREOCHEMISTRY; MAGNETIC RESONANCE; MATERIALS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; PETROCHEMICALS; PETROLEUM PRODUCTS; PLASTICS; POLYMERS; POLYOLEFINS; POLYVINYLS; RESONANCE; SPECTRA; SYNTHETIC MATERIALS; 360602* - Other Materials- Structure & Phase Studies
OSTI ID:
6505855
Research Organizations:
Idemitsu Kosan Co., Ltd., Tokyo, Japan
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: CODEN: IDSGA
Submitting Site:
NEDO
Size:
Pages: 84-87
Announcement Date:

Journal Article:

Citation Formats

Mitani, Masahiro. Structural analysis of syndiotactic polystyrene. Japan: N. p., 1988. Web.
Mitani, Masahiro. Structural analysis of syndiotactic polystyrene. Japan.
Mitani, Masahiro. 1988. "Structural analysis of syndiotactic polystyrene." Japan.
@misc{etde_6505855,
title = {Structural analysis of syndiotactic polystyrene}
author = {Mitani, Masahiro}
abstractNote = {Since the stereostructure of a high-molecular compound includes three types of isotactic, atactic and sydiotactic structures, a high-molecular compound with excellent properties can be produced by controlling the stereogularity of the compound with the identical composition. The stereoregularity of a stereogular polystyrene, or syndiotactic polystyrene (SPS), which had been successfully synthesized recently was quantitatively determined and the open chain structure by polymerization was investigated by nuclear magnetic resonance spectroscopy. Two SPSs were synthesized from cis-beta-d/sub/1-styrene and trans-beta-d/sub/1-styrene with alpha, beta, beta-d/sub/3-styrene. The results of spectral analysis of these two SPSs indicate that the former is of trans-conformation and the latter is of gauche conformation and that accordingly the open chain structure by polymerization of SPS is of cis-open chain and SPS has a planar zigzag structure even in the solution. (5 figs, 9 refs)}
journal = {Idemitsu Sekiyu Gijutsu; (Japan)}
volume = {31:5}
journal type = {AC}
place = {Japan}
year = {1988}
month = {Sep}
}