Abstract
Microgel particles have diameter in the range from 100nm to 1µm, these particles have gel like network structure and the polymer network swells in a suitable solvent. The poly NIPAM particles are responsive and exhibit drastic changes of the volume close to the lower critical temperature (LCST). The special properties of the microgel are due to the presence of covalent bonds between different parts of the polymer chains and the presence of active functional groups. Poly nipam is the most well studied water-swelled microgel system. Concentrated microgel solution is placed on the ATR crystal and the dehydration caused due to the effect of room temperature is studied using the IR spectrometer. The changes in the properties of the microgel with respect to time are recorded with the help of THERMO NICOLET software. The data obtained is converted into EXCEL and the data is analysed, different plots are obtained for the wavelength and time to study the behaviour of the microgel. The initial and the final behaviour of the microgel are observed, the graphs obtained in excel and the dendograms obtained by using the insight, matlab software.
