多元羧酸与木材酯化反应化学分析光电子能谱ESCA的研究

方桂珍; 李坚; 苏润洲

doi:10.19455/j.mcgy.1999.02.007

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多元羧酸与木材酯化反应化学分析光电子能谱ESCA的研究
Esterification between Wood and Polycarboxylic Acid by X ray Photoelectron Spectroscopy
1. 东北林业大学
1999年第2期
DOI： 10.19455/j.mcgy.1999.02.007

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[1]方桂珍,李坚,苏润洲.多元羧酸与木材酯化反应化学分析光电子能谱ESCA的研究[J].木材工业,1999(02):24-26.

Fang Guizhen Li Jian Su Runzhou. Esterification between Wood and Polycarboxylic Acid by X ray Photoelectron Spectroscopy[J]. China Wood Industry, 1999,(2).
[1]方桂珍,李坚,苏润洲.多元羧酸与木材酯化反应化学分析光电子能谱ESCA的研究[J].木材工业,1999(02):24-26. DOI： 10.19455/j.mcgy.1999.02.007.

Fang Guizhen Li Jian Su Runzhou. Esterification between Wood and Polycarboxylic Acid by X ray Photoelectron Spectroscopy[J]. China Wood Industry, 1999,(2). DOI： 10.19455/j.mcgy.1999.02.007.

摘要

采用化学分析光电子能谱ＥＳＣＡ分析了多元羧酸与木材交联反应过程中主要组分的化学结构变化。ＥＳＣＡ波谱表明：产物中Ｃ１（烷基碳）和Ｃ４（羧基和酯基碳）增加，Ｃ２（羟基碳）减少；Ｏ１（羧基和酯基氧的比率）增加，Ｏ３（羟基氧的比率）减少。从而证实：在催化剂作用下，提高反应温度，木材的化学组分能与多元羧酸化合物——１，２，３，４－丁烷基四甲酸发生酯化反应。这一分析结果与ＦＴＩＲ和ＣＰ／ＭＡＳ１３ＣＮＭＲ波谱分析所得到的结论一致

Abstract

Chemical construction changes of components in esterification between wood and polycarboxylic were analyzed by electron spectroscopy for chemical analysis(ESCA) in this paper.ESCA spectra showed with increment in BTCA concentration,the ratios of C 1(alkyl carbon) and C 4(carbon of carboxyl and ester)were increased and C 2(hydroxyl carbon)in C 1s decreased;the ratios of O 1(oxygen of carboxyl and ester) were increased and O 3(hydroxyl oxygen)in O 1s decreased.This proved that esterification between polycarboxylic acid—1,2,3,4 butanetetracarboxylic acid (BTCA) and wood components occurred at elevated temperature with catalyst.This conclusion was in correspondence with analysis of FTIR and CP/MAS 13 C NMR spectra.

关键词

多元羧酸酯化反应交联反应ESCA

Keywords

Polycarboxylic acidsEsterificationCrosslinking reactionESCA

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