The purpose of this work is the development and characterisation of new hybrid polysaccharide (FucoPol) membranes. These membranes were prepared by incorporation of a SiO₂ network homogeneously dispersed by using a sol-gel method with GPTMS as a crosslinker silica precursor. They were further crosslinked with CaCl₂ for reinforcement of mechanical properties and improvement of their permeation performance. They were characterised in terms of their structural, mechanical and thermal properties.

They presented a dense and homogeneous structure, resistant to deformation, with a Tg of 43 °C and a thermal decomposition between 240–251 °C.

The hybrid FucoPol membranes were tested for ethanol dehydration by pervaporation and also for nitrogen dehydration. They exhibited high water selectivity values, similar to PERVAP^® 4101, however they lost their stability when exposed to solutions of 10.0 wt.% water in ethanol. In contrast, these membranes were stable when applied in N₂ dehydration, leading to reproducible performance and very high water selectivities.

这项工作的目的是开发和鉴定新型杂合多糖（FucoPol）膜。这些膜通过掺入通过使用溶胶凝胶法以GPTMS作为交联剂二氧化硅前体均匀分散的SiO ₂网络来制备。它们进一步与CaCl ₂交联以增强机械性能并改善其渗透性能。根据它们的结构，机械和热性能对其进行了表征。

他们呈现出致密而均匀的结构，抗变形，Tg为43°C，热分解在240-251°C之间。

混合FucoPol膜通过全蒸发测试了乙醇的脱水作用，还测试了氮气的脱水作用。他们表现出高的水选择性值，类似于PERVAP ^® 4101，然而，当暴露于乙醇10.0％（重量）水的解决方案，他们失去稳定性。相反，当应用于N ₂脱水时，这些膜是稳定的，从而导致可重现的性能和极高的水选择性。