Modelling Tamisolve

Question

Hello i am evaluating Tamisolve utilization for Polyurethane dispersion.

I purchase tamisolve from Eastman.Tamisolve is not in the database. There is no information for inventory from other studies. Also there is no information for comparison with NMP- Tamisolve e.g. 30% lower impacts, NMP is in database.

I cannot use NMP as proxy

Do you have any ideas for proxies available in database?

Answer 1

Hi,

first things first. Please ask Eastman to give you data (EPD, LCA, PCF). So according to their SDS, Tamisolve is 1-butylpyrrolidin-2-one. You have to model the synthetic route from glutamic acid (Green Chem., 2017,19, 4919-4929 or Eastman patent) yourself. And here it gets tricky. If you want to prove, that Tamisolve has a lower environmental impact than NMP, you will compare a present petrochemical process, with some literature data for the biotechnological production of glutamic acid and its reaction to Tamisolve. Good luck! Using a butylamine or isopropylamine as a proxy for the methylamine in the production of NMP will not work as you really are focusing on having Tamisolve, or?