Edwin A. Murillo

9 Questions 234 Answers 0 Followers

Questions related from Edwin A. Murillo

Why the melting entalphy of samples of PP-g-MA is different but the peaks observed by XRD are very similar, how can be explained it?

The difractograms not show a variation of the intensity of the peaks, but the melting enthalphy obtained by DSC is changing with the AM grafted into PP.

11 November 2017 5,389 4 View

Which are the new tendencies in polymer materials research?

Read 1 answer by scientists to the question asked by Edwin A. Murillo on Mar 2, 2017

03 March 2017 8,187 1 View

¿Could you please tell me who can supply me this reactive (2-(9H-Carbazol-9-yl) acetic acid?

I need to get this reactive (2-(9H-Carbazol-9-yl) acetic acid). Therefore, I am requiring some information for it. Thank you

09 September 2016 6,843 0 View

How can make the integration of the peaks in a NMR spectrum by using the origin program?

I need to know which is the route for obtaining the integration

04 April 2016 5,680 2 View

¿Can you help me with a creep methodology to thermoplastic polymer (PP) ?

When I put the stress for a period of 600 s. After that I remove the stress, the rheometer take values of compliance or in the methodology have I add another parameter?

02 February 2016 10,007 1 View

¿Why a polymer has a Tg but it has not a Tm. Aditionally, despite of it, the polymer can melt ?

By DSC analysis the polymer only shows a Tg

02 February 2016 6,081 4 View

How can I quantified the proportion of a phenol and formaldehyde employed on the synthesis of a resol?

I need to find the molar ratio of these materials in a final resol.

01 January 2016 3,836 3 View

Why one sample A presents higher complex viscosity than a sample B, but the behavior in a shear viscosity is opposite?

This behavior was exhibited by thermoplastic polymer functionalized on molten state

12 December 2015 4,321 9 View

How can I export results on a Zetasizer nanoseries (nano Z)?

I need to obtain quickly this information, but when I make clik in file and then on export results not appear the information required to obtain the plot

08 August 2015 3,501 7 View