Abstract
The precise estimation of glass transition temperature and relaxation time is great importance for the development of functional network-polymers. The general law of relaxation time proposed in this paper is effective to estimate the glass transition temperature measured by different frequency. With the low, we estimated Tg in the heating and cooling process. We also compared the dispersion maps obtained with the general law of relaxation time and WLF equation. As a results, relaxation time over wider temperature range was predicted by the general law of relaxation time, compared with the WLF equation.