文献类型：期刊文献

中文题名：工业脂肪酸和松香Diels-Alder反应合成新型二聚酸

英文题名：Synthesis of A Novel Dimeric Acid by Diels-Alder Reaction between Industrial Fatty Acid and Rosin

作者：杨小华[1] 黄坤[1] 连建伟[1] 夏建陵[1]

第一作者：杨小华

机构：[1]中国林业科学研究院林产化学工业研究所生物质化学利用国家工程实验室国家林业局林产化学工程重点开放性实验室

年份：2009

卷号：29

期号：B10

起止页码：260-260

中文期刊名：林产化学与工业

外文期刊名：Chemistry and Industry of Forest Products

收录：CSTPCD;;Scopus;北大核心:【北大核心2008】；CSCD:【CSCD_E2011_2012】；

基金：中央级公益性科研院所基本科研业务费专项资金(CAFINT2008C06)

语种：中文

中文关键词：松香;工业脂肪酸;Diels-Alder反应;二聚酸

外文关键词：rosin ; industrial fatty acid ; Diels-Alder reaction ; dimeric acid

分类号：TQ645.6;TB333

摘要：以工业脂肪酸和松香为原料,经Diels-Alder反应,合成一种新型二聚酸,并采用高效液相色谱测定了产物的单体、二聚体和三聚体的含量。考察了松香与工业脂肪酸物料比、催化剂组成、反应温度、反应时间和反应压力对产物组成和性质的影响。结果表明,采用自制的催化剂体系,松香-脂肪酸的质量比为1∶19,反应温度250℃,反应时间6 h,反应压力0.6 MPa的条件下,产物中二聚体达到53.7%。聚合产物在40℃的黏度为300 mPa.s、酸值为189.9 mg/g。用红外光谱对产物进行了表征。
A novel dimeric acid was synthesized by Diels-Alder reaction between industrial fatty acid and rosin. The contents of monormer, dimer and trimer were detected by high performance liquid chromatogram （HPLC）. The effects of influencing factors such as rosin-fatty acid ratio, catalyst, reaction temperature, reaction time and reaction pressure on the content and properties of product were investigated. The result showed that the optimum conditions were as follows： rosin-fatty acid ratio 1 ： 19, reaction temperature 250 ℃, reaction time 6 h and reaction pressure 0.6 MPa. Dimerie acids of 53.7 % can be obtained in the product by using self-made catalyst. The viscosity of product is 300 mPa·s at 40 ℃ and acid value of the product is 189.9 mg,/g. The product was characterized by infared spectroscopy （IR）.