the HSP you can find here:

https://www.stevenabbott.co.uk/practical-adhesion/hsp.php

Dear Nivedita,

I believe that following the literature, you will find, more or less, some answers connected to your request. Furthermore, the information could be very different connected to the equations/ experimental methods of determination of solubility parameters. Factors as polymer molecular weights, temperature, others… could influence the values of solubility parameters.

Regarding PCL, the solubility parameter (δ, MPa1/2) is given 19.2 (preferred value, range (18.6 - 19.8)) (source: http://polymerdatabase.com/polymers/polycaprolactone.html). According to other sources, the solubility parameters of PCL measured at 25 ◦C are δD = 17.7, δP = 6.2, δH = 7.8. (δ= 19.7), see the paper cited below.

Please consider also the answers given by other RG colleagues. Finally, I believe that in this paper which is concerning the PCL of different molecular weights (Bordes, C., et al., (2010). Determination of poly(ɛ-caprolactone) solubility parameters: Application to solvent substitution in a microencapsulation process. International Journal of Pharmaceutics, 383(1-2), 236–243. doi:10.1016/j.ijpharm.2009.09.023) you will find the most helpfully information.

Good luck in in your choice and best regards,

Marius

Marius Murariu and Marc Simonet thank you sir for the answers

The question is simple, the response is not. Both responses given by the colleagues are theoretical and perfect. Nevertheless what is your problem with PCL Mn 80 000?