Alejandra Tapia Sierra

4 Questions 9 Answers 0 Followers

Questions related from Alejandra Tapia Sierra

Can I add something to the deionized water during washing chitin to obtain faster a neutralized chitin?

I am trying to obtain chitin by a chemical method. After deproteinization and demineralization processes, the powder obtained after each step is too alkaline or acidic respectively. Then, I spend...

11 July 2022 1,668 3 View

Can a polymer increase at first and then decrease his weight when it is inmersed on water?

How can this be possible? which conditions or modifications can change the polymer behavior on water?

01 February 2016 6,962 10 View

What solvent can I use to solubilize the SEBS block copolymer (different to dichloroethane) ?

I need to make the casting of the copolymer of styrene-ethylene-butylene-styrene ( SEBS ) and I wonder what I could use as solvent (different to dicloroethane)

24 March 2015 8,218 6 View

Where in structure of block copolymer (like SEPS or SEBS) is grafted the maleic anhydride by reactive extrusion?

I need to draw the structure of SEPS with maleic anhydride graft.

27 January 2015 2,788 2 View