Frontiers of Polymer Research by Paras N. Prasad (auth.), Paras N. Prasad, Jai K. Nigam

By Paras N. Prasad (auth.), Paras N. Prasad, Jai K. Nigam (eds.)

This booklet represents the complaints of the 1st overseas convention on Frontiers of Polymer learn held in New Delhi, India in the course of January 20-25, 1991. Polymers have frequently been perceived as components for use in insulations, coatings, materials, and structural fabrics. Defying this classical view, polymers are rising as a brand new category of fabrics with power functions in lots of new applied sciences. in addition they supply difficult possibilities for primary study. spotting an enormous development in around the world curiosity in polymer examine and know-how, a really worldwide "1st foreign convention on Frontiers of Polymer study" used to be prepared through P. N. Prasad (SUNY at Buffalo), F. E. Karasz (University of Massachusetts) and J. ok. Nigam (Shriram Institute for business examine, India). The 225 individuals represented 25 international locations and a large choice of educational, commercial and executive teams. The convention used to be inaugurated by means of the major Minister of India, Mr. Chandra Shekhar and had a excessive point media assurance. the point of interest of the convention was once on 3 frontier components of polymer examine: (i) Polymers for photonics, the place nonlinear optical houses of polymers express nice promise, (ii) Polymers for electronics, the place new conduction mechanisms and photophysics have generated huge enthusiasm and (iii) excessive functionality polymers as new complex polymers have exhibited exceedingly excessive mechanical power coupled with gentle weight.

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The success of these new technologies is crucially dependent on the availability of advanced new materials which are highly efficient, durable in their performance and simultaneously perform more than one function. These are the high performance multifunctional materials. Polymeric materials are molecular hierarchical systems in which the structure and functionalities can be controlled from the atomic level to the bulk level. This tremendous structural flexibility provides one with a true opportunity to introduce multifunctionality in a polymeric material.

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As a result many of these molecules crystallize in a centric or nearly centric habit leading to a crystalline material with little or no activity. By attaching the same molecules to polymers, crystalline formation may be avoided. Appropriately designed polymers contain high concentrations of the NLO chromophore and are glassy. By heating these polymers to a temperature above the glass transition temperature, the dipolar NLO chromophores may be poled in a strong electric field imparting a net noncentric alignment to the ensemble of active molecules.

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