NEW RUBBER ANTIOXIDANTS AND FUNGICIDES DERIVED FROM LARREA-TRIDENTATA (CREOSOTE BUSH)

被引：9

作者：

BELMARES, H ^{[1
]}

BARRERA, A ^{[1
]}

CASTILLO, E ^{[1
]}

RAMOS, LF ^{[1
]}

HERNANDEZ, F ^{[1
]}

HERNANDEZ, V ^{[1
]}

机构：

[1] CTR INVEST AGR NORESTE,MATAMOROS,COAHUILA,MEXICO

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY PRODUCT RESEARCH AND DEVELOPMENT | 1979年 / 18卷 / 03期

关键词：

D O I：

10.1021/i360071a014

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The shrub of Larrea tridentata covers around 25% of the surface area of Mexico. The resinous material of the external leaf surface (about 16%, dry weight basis) is mostly phenolic in composition and exhibits antifungal activity for several fungi tested such as Rhlzoctonia solani, Phytium spp, Rhizopus nigricans, Fusarium oxysporum, Verticillium dahlie (rss-4), and Verticillium dahlie (Inter-2). Field tests against the disease known as cotton rust caused by the fungus Puccinia cacabata have been started with promising results. Several resin derivatives were made such as the acetate ester, phenoxyacetic acid derivative, and a condensation product with formaldehyde. These derivatives also show antifungal activity. An additional application for the resin of Larrea as an antioxidant for natural rubbers (Guayule and Hevea rubbers) appears promising. Tests have been carried out for rubber gums and for vulcanized rubbers. Outdoor exposure studies and vulcanization time characteristics were also satisfactory. © 1979, American Chemical Society. All rights reserved.

引用

页码：220 / 226

页数：7

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