Sanal Sebastian Payyappilly

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Questions related from Sanal Sebastian Payyappilly

How can I temporarily stop the polymerization of aniline? Can i achieve this by changing the pH alone?

I am doing chemical oxidative polymerization of aniline with APS.

14 July 2015 274 6 View

Why are triblock copolymers more hydrophilic than diblock copolymers?

We observed that a triblock copolymer (PEG12-PCL24-PEG12) is more hydrophilic than diblock (PEG12-PCL12). Micelles prepared from the diblock copolymers were less stable and aggregated much faster.

27 June 2014 6,161 5 View

How can we differentiate a nanostructre formed from an amphiphilic block copolymer is micelle or nanoparticle?

We have synthesized amphiphilic block copolymer of polyethylene glycol and polycaprolactone. Tem study shows that structures formed are spherical in shape. DLS study shows that its size is in...

14 November 2013 263 5 View

How long does it take for nanoparticles to get accumulated in tumor tissue by enhanced permeation and retention effect?

Prepared polymer nanoparticles show some aggregation tendency after 2 -3 days. How long the particle needed to be in the nano scale range to get accumulated in tumor tissue by EPR effect?

30 April 2013 378 0 View