Effect of stereoregularity on the thermo-oxidative degradation of poly(propylene)s estimated by chemiluminescence

Effect of stereoregularity on the thermo-oxidative degradation of poly(propylene)s estimated by chemiluminescence

The effect of stereoregularity on the thermo‐oxidative degradation of poly(propylene)s, isotactic (IPP) and syndiotactic (SPP), was compared with that of high density polyethylene (HDPE) by means of chemiluminescence (CL). SPP is extremely stable to thermal oxidation and CL signals appeared much lat...

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Veröffentlicht in:Macromolecular rapid communications. 1997-08, Vol.18 (8), p.667-671
Hauptverfasser: Osawa, Zenjiro, Kato, Masahide, Terano, Minoru
Format: Artikel
Sprache:eng
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Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
Thermal and thermodynamic properties
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container_issue 8
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container_title Macromolecular rapid communications.
container_volume 18
creator Osawa, Zenjiro
Kato, Masahide
Terano, Minoru
description The effect of stereoregularity on the thermo‐oxidative degradation of poly(propylene)s, isotactic (IPP) and syndiotactic (SPP), was compared with that of high density polyethylene (HDPE) by means of chemiluminescence (CL). SPP is extremely stable to thermal oxidation and CL signals appeared much later than in IPP and even later than in HDPE. For example, at 160°C the maximum intensity of CL was measured after only 13 min for IPP, 60 min for HDPE and 260 min for SPP. IR spectroscopic results support the conclusions drawn from CL results.
doi_str_mv 10.1002/marc.1997.030180807
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SPP is extremely stable to thermal oxidation and CL signals appeared much later than in IPP and even later than in HDPE. For example, at 160°C the maximum intensity of CL was measured after only 13 min for IPP, 60 min for HDPE and 260 min for SPP. 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subjects Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
Thermal and thermodynamic properties
title Effect of stereoregularity on the thermo-oxidative degradation of poly(propylene)s estimated by chemiluminescence
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