| 초록 |
Although aromatic polyimides exhibit excellent thermal, mechanical, electrical, and chemical properties, they have poor processability including limited solubility in organic solvents which is caused by rigid polymer backbone and strong interchain interaction. In addition, the polyimides have strong absorption in UV and visible region, which is mainly due to the formation of intermolecular charge-transfer complex (CTC). In order to develop fully or partially aliphatic polyimides with enhanced properties, the structure-property relationship of the polyimides has been extensively studied. However there have been only a few reports on the effect of stereochemistry of aliphatic diamine on polyimide properties. In this work the structure-property relationship was studied for fully or partially aliphatic pololyimides derived from different isomers of an aliphatic diamine. The properties of the polyimides were compared to those of aromatic ones. |
