应用化学 ›› 1987, Vol. 0 ›› Issue (5): 88-90.

• 研究简报 • 上一篇    下一篇

天然橡胶-黄腐酸的非均相接枝聚合

张其锦, 张德和   

  1. 中国科学院化学研究所, 北京
  • 收稿日期:1986-12-05 修回日期:1987-03-14 出版日期:1987-10-10 发布日期:1987-10-10
  • 基金资助:
    中国科学院科学基金委员会

HETEROGENEOUS RADICAL GRAFTING OF FULVIC ACID ONTO NATURAL RUBBER

Zhang Qijin, Zhang Dehe   

  1. Institute of Chemistry, Academia Sinica, Beijing
  • Received:1986-12-05 Revised:1987-03-14 Published:1987-10-10 Online:1987-10-10

摘要: 腐植酸是一种组份和结构很复杂的天然大分子。利用腐植酸中的自由基进行烯类单体在腐植酸上的接枝聚合反应,已有报道,但尚未见到腐植酸与双烯聚合物反应获得接枝聚合物的报道。巩县风化煤黄腐酸是腐植酸中分子量较小(Mn=1035)的部分,它的结构特点已进行过较详细的表征。本文以这种黄腐酸为原料,在60℃下,以苯为天然橡胶的溶剂,以水为黄腐酸的溶剂,以过氧化苯甲酰为引发剂,聚合得到了天然橡胶与黄腐酸的接枝聚合物,并对接枝聚合物进行了一些表征。

Abstract: At 60℃ and in the presence of benzoyl peroxide, fulvic acid has been grafted onto natural rubber through heterogeneous phase polymerization. Tbe grafted product is soluble in organic solvents in common with the original rubber. A new absorption band (1130 cm-1) appeared in the IR spectrum of the grafted polymer, indicating the presence of C-O-C bond as the grafting site. The Tg of the grafted polymer measured by DSC methed is -53℃.