ICCAS OpenIR
Study on discoloration mechanism of polyamide 6 during thermo-oxidative degradation
Li, RF; Hu, XZ
1998
Source PublicationPOLYMER DEGRADATION AND STABILITY
ISSN0141-3910
Volume62Issue:3Pages:523-528
AbstractThere is a great difference of opinion on the discoloration mechanism of polyamide in the course of thermo-oxidative degradation. To clarify the exact structure of the chromophore group produced in a polyamide during thermo-oxidation, hydrolysis of the yellow polyamide film after thermo-oxidation was carried out and a yellow substance with low molecular weight was separated from the hydrolysis products by preparative column chromatography and characterized by IR, FAB, MS, UV, (HNMR)-H-1 and (CNMR)-C-13. The structure of the chromophore group in the yellow substance was determined and the structure of the chromophore group in the oxidized polyamide 6 was also inferred. Based on the experimental results obtained, a never discoloration mechanism of polyamide is suggested. According to this mechanism, the discoloration of polyamide during thermo-oxidation was caused by the formation of chromophore alpha-ketoamide groups by oxidation of the methylene group adjacent to the carbonyl of the amide to a carbonyl group. (C) 1998 Elsevier Science Limited. All rights reserved.
Indexed BySCI
Language英语
WOS IDWOS:000077477200015
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:38[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/74292
Collection中国科学院化学研究所
Corresponding AuthorHu, XZ
AffiliationChinese Acad Sci, Inst Chem, Polymer Phys Lab, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Li, RF,Hu, XZ. Study on discoloration mechanism of polyamide 6 during thermo-oxidative degradation[J]. POLYMER DEGRADATION AND STABILITY,1998,62(3):523-528.
APA Li, RF,&Hu, XZ.(1998).Study on discoloration mechanism of polyamide 6 during thermo-oxidative degradation.POLYMER DEGRADATION AND STABILITY,62(3),523-528.
MLA Li, RF,et al."Study on discoloration mechanism of polyamide 6 during thermo-oxidative degradation".POLYMER DEGRADATION AND STABILITY 62.3(1998):523-528.
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