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Dr. Sandeep K. Sharma, Jitendra Bahadur, Dr. Pushkar N. Patil, Priya Maheshwari, Dr. Saurabh Mukherjee, Dr. Kathi Sudarshan, Dr. Subhasish Mazumder and Dr. Pradeep K. Pujari Revealing the Nano-Level Molecular Packing in Chitosan–NiO Nanocomposite by Using Positron Annihilation Spectroscopy and Small-Angle X-ray Scattering ChemPhysChem 14

Version of Record online: 18 FEB 2013 | DOI: 10.1002/cphc.201200902

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Principles of packing: Positron annihilation lifetime spectroscopy and the coincidence Doppler broadening (CDB) technique are used to quantify the free volume and molecular packing in chitosan–NiO nanocomposites (CNCs) containing 0.2–5 wt % NiO. CDB reveals the longitudinal component of the positron–electron momentum (PL, see picture). The changes in nanohole size, density, and size distribution as a function of NiO loading are measured.

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