|
|||||
|
|
| 多元羧酸与木材酯化反应的固体核磁共振谱CPMAS~(13)CNMR的表征 | |
| 引用本文： | 方桂珍,李坚,孔漫,上原徹,古野毅.多元羧酸与木材酯化反应的固体核磁共振谱CPMAS~(13)CNMR的表征[J].林业科学,2001,37(2). |
| 作者姓名： | 方桂珍 李坚 孔漫 上原徹 古野毅 |
| 作者单位： | 1. 东北林业大学 2. 中国医学科学院药物研究所 3. 岛根大学 |
| 基金项目： | 国家自然科学基金项目!39910 5 94资助 |
| 摘 要： | 本研究要用以多元羧酸为酯化剂 ,以无机盐为催化剂的交联体系。这一体系是新型的、水溶的、无毒害、无污染的非甲醛系试剂并联体系。本文采用固体核磁共振谱CP MAS1 3 CNMR ,测定木材主要组分酯化反应的CP MAS1 3 CNMR波谱 ,归属主要谱线 ,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。结果表明 :酯化反应后 ,羧基碳的比率增加 ;芳香族碳和羟基碳的比率减少 ;烷基碳的变化随着羧基碳的变化而改变。这一变化趋势与采用FTIR和ESCA得到的变化趋势一致 |
| 关 键 词： | 多元羧酸 酯化反应 CPMAS~(13)CNMR |
THE STUDY ON ESTERIFICATION REACTION BETWEEN WOOD AND POLYCARBOXYLIC ACID BY CP/MAS~(13) C NMR-SPECTRA |
|
| Fang Guizhen,Li Jian,Kong Man,Tohru Uehara,Takeshi Furuno.THE STUDY ON ESTERIFICATION REACTION BETWEEN WOOD AND POLYCARBOXYLIC ACID BY CP/MAS~(13) C NMR-SPECTRA[J].Scientia Silvae Sinicae,2001,37(2). | |
| Authors: | Fang Guizhen Li Jian Kong Man Tohru Uehara Takeshi Furuno |
| Institution: | Fang Guizhen\ Li Jian(Northeast Forestry University\ Harbin150040)\ Kong Man(Academy of Medical Sciences in China\ Beijing100001) Tohru Uehara Takeshi Furuno(Shimane University\ Japan690) |
| Abstract: | Polycarboxylic acids acted as esterification agents and inorganic salts acted as catalyst in the wood crosslinking reaction. This new and soluble crosslinking system is poison free and pollution free system. In this paper, the CP/MAS 13 C NMR spectra of wood components were determined, main chemical shifts were signed and the changes of chemical constrcture were analyzed in esterification between wood and polycarboxylic by CP/MAS 13 C NMR spectra. Results showed: after esterification, the ratios of carboxyl and ester carbon increased, the ratios of aromatic and hydroxyl carbon decreased and the ratios of alkyl carbon changed with carboxyl carbon. This conclusion is the same as that by FTIR and ESCA spectra. |
| Keywords: | Polycarboxylic acids Esterification reaction CP/MAS 13 C NMR |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |