| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5210620 | Reactive and Functional Polymers | 2010 | 6 Pages |
Abstract
Polyimide-polydimethylsiloxane (PI-PDMS) hybrids were synthesized by combining an in situ sol-gel reaction of diethoxydimethylsilane (DEDMS) and imidization of poly(amide acid) (PAA) prepared from pyromellitic dianhydride (PMDA) and 4,4â²-oxydianiline (ODA). Transparent hybrid films were obtained with up to 3Â wt.% PDMS content corresponding to the relatively small domain size of PDMS as confirmed by scanning electron microscopy. The hybrid films with up to 3Â wt.% of PDMS content showed higher tensile modulus, strength and elongation at break than those of pristine PI, due to the in situ-formed PDMS. The thermal stability of the hybrids also increased with the increase of PDMS content, as evidenced by TGA.
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Authors
Tsutomu Takeichi, Yuki Shirai, Zhonglong Shen, Shaikh Md. Mominul Alam, Takehiro Kawauchi,