Two types of polyimide/silica composite films were prepared using sol-gel method through hydrolysis and polycondensation of tetraethoxysilane (TEOS) with the polyamic acid (PAA) and end-capped PAA solution. Samples were characterized by the means of differential thermogravimetry, X-ray diffractometry, scanning electron microscopy, universal test, impedance analyzer, chemical resistance test, etc. All of the PAA/silanol solutions heat-treated at 300℃ for 6h were transformed to polyimide/silica composites. It has been demonstrated that the properties of polyimide/silica composites were affected by the amount of silica addition and the bond type existed between polyimide and silica.

• 박희찬(부산대학교 무기재료공학과) | Hee-Chan Park
• 김지경(부산대학교 무기재료공학과) | Ji-Kyung Kim
• 박재현(부산대학교 무기재료공학과) | Jae-Hyun Park
• 김성완(부산대학교 무기재료공학과) | Sung-Wan Kim
• 이성환(부산대학교 무기재료공학과) | Sung-Hwan Lee
• 홍성수(부경대학교 화학공학부) | Seong-Soo Hong
• 박성수(부경대학교 화학공학부) | Seong-Soo Park Corresponding Author