All these materials are in general known as hydrophobic materials. We have a scale to measure the hydrophobicities of amino acids. Does such a scale exist for these polymers?
I am not very sure about your " scale" for polymer. But for polymer, generally we can use their surface energy, which is tested by water contact angle.
For water contact angle test, contact angle of 90 degree is the boundary between hydrophilic and hydrophobic. Above 90 degrees means hydrophobic.
Then the contact angle for PMMA, PE and PTFE are 71, 96 and 109 degrees. That means PMMA is weakly hydrophilic, PE and PTFE are hydrophobic.
Thank you very much for your information and o=precise values, since they will give me the gradation of hydrophobicities, which I am looking for.
Good luck.
- Badges
- Science topic
- Similar topics
- Physical Sciences
- Materials Science
- Materials
- Polymers