Abstract
Recently, the liquid crystalline elastomers containing the quaterphenyl groups (DHQ polymer) have been investigated by means of X-ray, differntial scanning calorimetric, dielectric and dynamical mechanical measurements. The DHQ polymer was found to show two phase transition near 7℃ and about 47℃. In this work, X-ray diffraction experiment was carried out in order to confirm the structure and phase transition. We performed a detailed structural study of the DHQ polymer.