Catherine Esnaashari

6 Questions 16 Answers 0 Followers

Questions related from Catherine Esnaashari

What is the effect of calcium on transesterification reactions in PET/PC system?

Do calcium ions act as a transesterification catalyst or depolymerization catalyst for PET in PET/PC blend system?

03 March 2018 5,326 1 View

How should I report the conductivity of polymer nanocomposites while they are heterogeneous in nature?

I am using a two probe method to measure the resistance of my graphene nanocomposites. I have observed that at concentrations around 1wt% the resistance does not depend on the area of the sample!...

25 January 2018 2,439 4 View

How to prevent crosslinking during modifying with epoxy functional silane?

what reaction conditions (pH, solvents, temperature, ...) do you recommend to prevent reaction of epoxide ring with nanocellulose hydroxyl groups and preserve epoxy fuctional groups during...

27 September 2016 4,706 3 View

Can Mw of PLA increase during processing?

Read 12 answers by scientists to the question asked by Catherine Esnaashari on Feb 20, 2016

20 February 2016 8,073 12 View

Can cellulose nanocrystals be degraded during centrifugation?

In order to remove free acid and raise pH After acid hydrolysis of MCC with H2SO4, I centrifuged the samples at 10000 rpm (about 17000 g) and then I observed a layer of brown material at the...

28 April 2015 4,074 5 View

Is HFIP a good solvent for both polyamide 6 and polylactic acid? Can nylon 6 be dissolved in DMF?

Do PLA and PA6 have a common solvent? If yes, then why are their blends always (at least to my best knowledge ) prepared by melt blending?

05 November 2014 8,930 7 View