Sunlight activated film forming adhesive polymers

Comparative Evaluation of Film Forming Properties of Some Natural Polymers

The aim of the present work was to formulate and evaluate transdermal films using natural polymers and to check its effectiveness for control of drug release using Ibuprofen as model drug. Study was undertaken to report the film forming properties of the natural polymers and their physicochemical data. Various drug free films with varying quantities of polymers i.e. Pectin (4, 6, 8 %), Locust b...

Growing Hyperbranched Polymers Using Natural Sunlight

In nature, a sapling can grow into a big tree under irradiation of sunlight. In chemistry, a similar concept that a small molecule only exposing to sunlight grows into a hyperbranched macromolecule has not been realized by now. The achievement of the concept will be fascinating and valuable for polymer synthesis wherein sunlight is inexpensive, abundant, renewable, and nonpolluting. Herein, we ...

comparison of mucoadhesive strength of different polymers in vagino-adhesive propranolol hydrochloride film

Networks of helix-forming polymers.

Biological molecules can form hydrogen bonds between nearby residues, leading to helical secondary structures. The associated reduction of configurational entropy leads to a temperature dependence of this effect: the helix-coil transition. Since the formation of helices implies a dramatic shortening of the polymer dimensions, an externally imposed end-to-end distance R affects the equilibrium h...

Polymerization of Thin Film Polymers

Polymeric coatings such as polyurethanes, acrylic, epoxies and silicones have been used for over 40 years to protect printed wiring boards (PWB) from moisture, handling and environmental influences. Special semiconductor grade polymers have been developed for chip passivation layers. Polyimide became the standard passivation layer for memory chips and other devices needing surface protection fo...