Biodegradable polyamide, films and products obtained from said polyamide and process for its preparation
申请人:CAFFARO S.p.A.
公开号:EP0347687A1
公开(公告)日:1989-12-27
This invention relates to a biodegradable polyamide. In particular, this invention relates to a polyamide containing keto carbonyl groups set out in monomeric units along the main chain of the polymer and having the structure
-OC-(CH₂)n--(CH₂)m-CO)- (I)
wherein n and m are equal or different whole numbers ranging from 8 to 10, preferably 8.
Said polyamides are high light-sensitive to the solar U.V. radiation, so that the exposure of the products obtained by means of such polyamides to the U.V. solar radiation causes the product to be transformed into a fragile or friable material, that is biodegradable.
本发明涉及一种可生物降解的聚酰胺。特别是,本发明涉及一种聚酰胺,它含有沿聚合物主链单体单元排列的酮羰基,并具有以下结构
-OC-(CH₂)n--(CH₂)m-CO)-(I)
其中 n 和 m 是 8 到 10 之间的相同或不同的整数,最好是 8。
上述聚酰胺对太阳紫外线辐射具有很强的光敏性,因此,通过此类聚酰胺获得的产品在太阳紫外线辐射下会变成易碎或易碎的材料,可进行生物降解。
Sakutskaja, Zhurnal Obshchei Khimii, 1940, vol. 10, p. 1557