Chemical Processes Under Microgravity

Chemical processes are basically molecular ones and are generally not affected by the gravity. But it is reasonable that the gravity affects the processes of larger size even in the chemical systems. The meso-scopic chemical systems are the examples of above. In this research work, we have studied the following subjects as the meso-scopic chemical systems: i) Dissipative structure formation under variable gravity, (ii) Chemical processes in the critical density fluctuations, Effects of gravity on colloidal assemblies, iv) Liquid droplet motion by photocheminal Marangoni effect, v) Spontaneous rotation of the nonlinear charged colloid patterns under gravity, and vi) Preparation of honeycomb capsules. In this report the first research subject is mainly discussed, since this is most developed one. The experimental results have already been obtained under the hypergravity and by the parabolic flight.