کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
641900 | 1457017 | 2013 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: New crosslinking method of polyamide–imide membranes for potential application in harsh polar aprotic solvents New crosslinking method of polyamide–imide membranes for potential application in harsh polar aprotic solvents](/preview/png/641900.png)
We report for the first time successful crosslinking of polyamide–imide (Torlon®) based membranes using di-isocyanates. The crosslinked membranes are resistant to N-methyl pyrrolidone (which is solvent of the non-crosslinked membranes) and have very good mechanical properties. In contrast to the state-of-the-art polyimide crosslinked membranes, the created covalent bond is expected to be thermally stable enabling applications at elevated temperatures. The transport characteristics (permeance and molecular weight cut off – MWCO) of the crosslinked membranes are changed in comparison to non-crosslinked ones. This suggests that the crosslinking process could be used to tailor these characteristics.
► Crosslinking of polyamide–imide (Torlon®) based membranes using di-isocyanates.
► Crosslinked membranes are resistant to N-methyl pyrrolidone.
► Transport characteristics of the new membranes can be tailored via the crosslinking process.
Journal: Separation and Purification Technology - Volume 102, 4 January 2013, Pages 142–146