皮胶原与丙烯酰胺衍生物的交联

Crosslinking of Collagen with Acrylamide Derivatives

丙烯酰胺的几种衍生物,可以迅速地、至少是部份地与皮胶原发生不可逆的反应。对皮革样品的收缩温度(Ts)的测定表明,这几种丙烯酰胺的衍生物,在适宜的条件下,可以与皮胶原发生交联反应,形成稳定的交联体系,具有良好的抗化学腐蚀和抗酶作用,耐水洗。交联反应在碱性条件下进行,加入 Na_2SO_4控制皮纤维的肿胀、收缩温度可达80℃以上。小试结果表明,可用于制造白色革或浅色革,并与相应的用甲醛与乙二醛处理的皮试样进行了对比。

Some derivatives of acrylamide were found to react react rapidly and,at least in part, irreversibly with hide and skin collagen.As measured by skrinkage temperature,these com- pounds effectively crosslinked the collagen and with proper control could serve as tanning agents.The reaction takes place under alkaline conditions and swelling of the protein was controlled by the addition of sodium sullate to the reaction mixtures.Shriakage tempera- tures of 85℃ and higher were obtained.The products exhibited the required resistance to chemical and enzymatic attack and,on a small scale,were made into white or pale yellow leather,respectively.The results were compared to those obtained with formaldehyde and glyoxal.