Investigating the effect of methylation on the kraft lignin optical behavior through simulation of lignin-containing papers

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TABEI A.

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Journal: Iranian Journal of Wood and Paper Science Research Year:2016 | Volume:31 | Issue:3 (56) Page(s): 410-424

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Title

Investigating the effect of methylation on the kraft lignin optical behavior through simulation of lignin-containing papers

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TABEI A. | Issue Writer Certificate

Keywords

Kraft ligninQ2

methylation reactionQ1

accelerated photo-agingQ1

optical indicesQ2

lignin-containing papersQ2

Abstract

In this study, changes in optical behavior of poplar Kraft lignin before and after methylation by dimethyl sulphate was determined by measuring optical indices (brightness, K, S, K/S and post-color numbers) of impregnated papers following accelerated photo aging. The structural changes in lignin caused by methylation reaction were verified using FT-IR spectroscopy. The results showed that, by methylation of lignin in methylated lignin-containing papers, the extent and stability of brightness is higher and PC number is lower compared to control samples. In methylated samples, the phenomenon of photo bleaching was observed. Therefore, it can be expressed that, methylation of lignin can prevent the formation of quinone groups and increases the stability of the optical indices in the photo aging conditions.

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APA: Copy

TABEI, A.. (2016). Investigating the effect of methylation on the kraft lignin optical behavior through simulation of lignin-containing papers. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, 31(3 (56) ), 410-424. SID. https://sid.ir/paper/109559/en

Vancouver: Copy

TABEI A.. Investigating the effect of methylation on the kraft lignin optical behavior through simulation of lignin-containing papers. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH[Internet]. 2016;31(3 (56) ):410-424. Available from: https://sid.ir/paper/109559/en

IEEE: Copy

A. TABEI, “Investigating the effect of methylation on the kraft lignin optical behavior through simulation of lignin-containing papers,” IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, vol. 31, no. 3 (56) , pp. 410–424, 2016, [Online]. Available: https://sid.ir/paper/109559/en

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