Bertoldo Monica, Bronco Simona, Gragnoli Tania, Ciardelli Francesco
PolyLab-CNR c/o Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Risorgimento, Pisa, Italy.
Macromol Biosci. 2007 Mar 8;7(3):328-38. doi: 10.1002/mabi.200600215.
1,6-Diisocyanatohexane and dimethyl sulfoxide were exploited as crosslinking agent and reaction solvent, respectively, for gelatin modification. Crosslinked samples were fractionated and analyzed by thermogravimetric analysis, infrared spectroscopy, acid and base titrations, and swelling measurements. The yield of crosslinking was found to increase with increasing diisocyanate and gelatin concentrations and the amount of bound crosslinker was evaluated. The chemical analysis of the reaction products allowed the process parameters to be related to the properties of the textile/gelatin composites. For this purpose poly(propylene)-, poly(ethylene terephthalate)-, and cotton-based textiles were treated to prepare soft and dimensionally stable supported materials with a gel phase composed of gelatin.
分别将1,6 - 二异氰酸己酯和二甲基亚砜用作明胶改性的交联剂和反应溶剂。对交联后的样品进行分级，并通过热重分析、红外光谱、酸碱滴定和溶胀测量进行分析。发现交联产率随二异氰酸酯和明胶浓度的增加而提高，并对结合的交联剂用量进行了评估。反应产物的化学分析使工艺参数能够与纺织物/明胶复合材料的性能相关联。为此，对聚丙烯、聚对苯二甲酸乙二酯和棉基织物进行处理，以制备具有由明胶组成的凝胶相的柔软且尺寸稳定的支撑材料。
