Dear Mahsa Mahdavinia, yes it is possible through the addition of additives such as plasticizers, lubricants, processing aids. If the polymer is not heat sensitive and mechanically stable, raising temperature and mixing shear may be another solutions. My Regards

In addition to the aforementioned possible solutions, addition of particular nanoparticles may also contribute to viscosity reduction.

https://www.nature.com/articles/s41467-019-13410-z

Hello Mahsa,

Depending on the processing technique, and in addition to Abdulkader's answer, if you use injection or extrusion molding, the increasing extensional shear rate would destroy the entanglement of chains. This process would cause a viscosity drop due to the high shear rate.

Hi everyone

Thanks for your reply

I do not use injection molding or extrusion in my work. I just want the polymer to be melted without these processes and dispersed with the desired additives by ultrasonication. The problem is high viscosity and lack of ultrasonic wave movement.

Hope this helps Mahsa Mahdavinia