工业脂肪酸和松香Diels-Alder反应合成复合二聚酸

›› 2010, Vol. 30 ›› Issue (5): 31-34.

• 研究报告 • Previous Articles Next Articles

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

YANG Xiao-hua^1,2, XIA Jian-ling^1,2, HUANG Kun¹, ZHANG Yan¹

1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab.for Biomass Chemical Utilization;Key and Open Lab.on Forest Chemical Engineering, SFA;Key Lab.of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China;2. Institute of New Technology of Forestry, CAF, Beijing 100091, China

Received:2010-03-09 Revised:1900-01-01 Online:2010-10-30 Published:2010-10-30

Abstract

Abstract: 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 5 h, reaction temperature 240℃ and reaction pressure 0.5 MPa, 51.03% mass fraction of dimeric acid can be obtained in the product. The viscosity of product is 320 mPa·s at 40℃ and the acid value of the product is 193.9 mg/g. The product was characterized by ¹H NMR, which showed that addition reaction had taken place.

Key words: rosin, industrial fatty acid, Diels-Alder reaction, dimeric acid

CLC Number:

TQ351

YANG Xiao-hua;XIA Jian-ling;HUANG Kun;ZHANG Yan. Synthesis of A Complex Dimeric Acid by Diels-Alder Reaction between Industrial Fatty Acid and Rosin[J]. , 2010, 30(5): 31-34.

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

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