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- W3147957315 abstract "The influence of extraction method and structure type on the pyrolysis behavior of lignin was investigated. The functional groups and pyrolysis characteristics of Klason lignin extracted from cotton stalk and walnut shell by the Klason method(labeled as KCSL and KWSL, respectively), and milled wood lignin extracted from walnut shell via the Bj?rkman method(labeled as BWSL), were analyzed with Fourier transform infrared spectroscopy(FTIR) and pyrolysis-gas chromatography-mass spectrometry(Py-GC/MS). The results were compared with commercial alkali lignin(CAL). The FTIR results revealed that alkali lignin, cotton stalk lignin and walnut shell lignins were Type G, Type GS and Type HGS, respectively. The pyrolysis results from Py-GC/MS suggested that the products distribution of various lignins were affeted by material type and extraction method greatly. The contents of catechol derivatives obtained from KCSL, KWSL and BWSL were 28.18%, 18.12% and 35.11%. Meanswhile modification of BWSL was mainly attributed to the breakage of benzyl aryl ether linkages, whereas cleavage of ether bonds at the α-and β-positions on the propanoid side chain was the marked feature of Klason lignin." @default.
- W3147957315 created "2021-04-13" @default.
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- W3147957315 date "2014-01-01" @default.
- W3147957315 modified "2023-09-23" @default.
- W3147957315 title "Characterization of structure and pyrolysis behavior of lignin" @default.
- W3147957315 hasPublicationYear "2014" @default.
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