Page 48 - 201907

第 36 卷第 7 期 精 细 化 工 Vol.36, No.7
201 9 年 7 月 FINE CHEMICALS July 2019

功能材料
水性大豆油-松香基超支化聚酯的合成与表征

徐亚洲 1,4 ，陈玉湘 1,2,3,4* ，赵振东 1,2,4

（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 江苏省生物质能源与材料重点实验室，江苏 南京 210042；2. 中国林业科学研究院
林业新技术研究所，北京 100091；3. 江苏强林生物质能源材料有限公司，江苏 溧阳 213364；4. 南京
林业大学 林业资源高效加工利用协同创新中心，江苏 南京 210042）

摘要：以松香、大豆油、顺丁烯二酸酐和丙三醇为原料制备水性大豆油-松香基超支化聚酯，采用 FTIR、GPC、
TG 对聚酯的结构进行了表征。研究表明,制备该聚酯的较佳条件为：大豆油投料量为松香质量的 50%，顺丁烯
二酸酐投料量为松香质量的 20%，加入丙三醇使物料羟羧比为 0.86，恒温酯化反应温度 250 ℃，恒温反应时间
为 3 h。该条件下得到超支化聚酯数均分子量（M n ）1776，重均分子量（M w ）5305；酸值为 49.9 mg/g，软化点
为 67 ℃，乳化 3 h 可得黄色透明胶体溶液；TG 结果表明，该聚酯分解主要集中在 350~450 ℃，表明其具有较
高的热稳定性能。该超支化聚酯胶体溶液粒径分布图显示整个体系的平均粒径为 22.14 nm，说明该聚酯在水
中乳化分散性能良好。
关键词：松香；大豆油；超支化聚酯；水性树脂；功能材料
中图分类号：TQ32；TQ645 文献标识码：A 文章编号：1003-5214 (2019) 07-1294-07

Synthesis and Characterization of Waterborne Soybean
Oil-rosin Based Hyperbranched Polyester

1,4
XU Ya-zhou , CHEN Yu-xiang 1,2,3,4* , ZHAO Zhen-dong 1,2,4
（1. Institute of Chemical Industry of Forest Products, CAF; National Engineering Lab for Biomass Chemical
Utilization; Key and Open Lab of Forest Chemical Engineering, SFA; Key Lab of Biomass Energy and Material, Jiangsu
Province, Nanjing 210042, Jiangsu, China; 2. Research Institute of Forestry New Technology, CAF, Beijing 100091,
China; 3. Jiangsu Qianglin Bio-energy and Bio-materials Limited Company, Liyang 213364, Jiangsu, China; 4.
Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing
210042, Jiangsu, China）

Abstract: The waterborne soybean oil-rosin-based hyperbranched polyester was prepared from rosin,
soybean oil, maleic anhydride and glycerol and characterized by FTIR, GPC and TG. The results showed
that the preferred conditions for the preparation of the polyester were as follows: the dosage of soybean oil
was 50% by mass of rosin, that of maleic anhydride was 20% by mass of rosin, and the hydroxyl-carboxyl
ratio of raw materials was 0.86 by adding glycerol, esterification reaction temperature was 250 ℃, and
reaction time was 3 h. Under these conditions, the number average molecular weight (M n) of the prepared
hyperbranched polyester was 1776, the weight average molecular weight (M w) was 5305, the acid value was
49.9 mg/g and softening point was 67 ℃. The yellow transparent colloid solution was obtained after 3
hours of emulsification. TG results indicated that the decomposition of polyester was mainly concentrated
in the ranging from 350 ℃ to 450 ℃, indicating that it had higher thermal stability. The particle size
distribution of the hyperbranched polyester colloidal solution demonstrated that the average particle size of
the whole system was 22.14 nm, which revealed that the polyester had good emulsifying and dispersing
properties in water.
Key words: rosin; soybean oil; hyperbranched polyester; waterborne resin; functional materials

收稿日期：2018-12-04; 定用日期：2019-02-21; DOI: 10.13550/j.jxhg.20180886
基金项目：国家科技支撑计划（2015BAD15B08）
作者简介：徐亚洲（1994—），男，硕士生。联系人：陈玉湘（1970—），男，研究员，E-mail：cyxlhs@126.com。