文献类型：期刊文献

中文题名：工业脂肪酸和松香Diels-Alder反应合成复合二聚酸

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

作者：杨小华[1,2,3,4,5] 夏建陵[1,2,3,4,5] 黄坤[1,2,3,4] 张燕[1,2,3,4]

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;[2]生物质化学利用国家工程实验室;[3]国家林业局林产化学工程重点开放性实验室;[4]江苏省生物质能源与材料重点实验室;[5]中国林业科学研究院林业新技术研究所

年份：2010

卷号：30

期号：5

起止页码：31-34

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：中国林科院林业新技术所基本科研业务费专项基金(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：TQ351

摘要：以工业脂肪酸和松香为原料,经Diels-Alder反应合成一种复合二聚酸。采用凝胶色谱法测定了产物的单体、二聚体和三聚体的含量,探讨了不同反应条件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,催化剂用量(以体系质量计)1%,松香质量分数5%,反应时间5 h,反应温度240℃,反应压力0.5 MPa的条件下,产物中二聚体达到51.03%,加成产物40℃的黏度为320 mPa.s、酸值为193.9 mg/g。用1HNMR对产物进行了表征,表明发生了Diels-Alder加成反应。
A complex dimeric acid was synthesized by Diels-Alder reaction using industrial fatty acid and rosin as raw material.The contents of monomer,dimer and trimer were detected by gel permeation chromatography（GPC）.Effects of different reaction conditions on the composition and properties of product were discussed.The result showed that using the amount of the self-made catalyst 1% in terms of mass of the system,mass fraction of rosin 5%,reaction time 5h,reaction temperature 240℃ and reaction pressure 0.5MPa,51.03% mass fraction of dimeric acid can be obtained in the product.The viscosity of product is 320mPa·s at 40℃ and the acid value of the product is 193.9mg/g.The product was characterized by 1HNMR,which showed that addition reaction had taken place.