Synthesis and optical characterization of polyimide-co-polysiloxane
| dc.contributor.author | Sofea Niza Binti Muhamad Nizam | |
| dc.date.accessioned | 2021-02-17T02:57:31Z | |
| dc.date.available | 2021-02-17T02:57:31Z | |
| dc.date.issued | 2019-07 | |
| dc.description.abstract | Polyimide is widely used in engineering applications due to its excellent mechanical properties, thermal stability, and resistance. However, conventional polyimide has suffered from several drawbacks such as polyimide being subjected to more cracking and chipping. Therefore, copolymerization will improve the properties and processing. The aim of this work is to synthesize and study polyimide-co-polysiloxane to form a crosslink network by adding monomer (3-Aminopropyl) triethoxysilane. Polyimide synthesis involved a reaction between 4,4’-(Hexafluoroisopropylidene) bis (pphenyleneoxy)dianiline with 4,4’-Oxidiphthalic anhydride through N-Methyl-2- pyrrolidone solvent to form polyamic acid that was then copolymerized by reacting (3- Aminopropyl)triethoxysilane. The thermal and optical properties of the monomer used vary considerably. Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and dynamic mechanical analysis (DMA) were used to characterize the polyimide film. The presence of polysiloxane segment in polyimide was analyzed by FTIR while DSC was used to identify the glass transition temperature of polyimide and have proved by DMA. TGA showed a decrease of thermal stability of polyimide containing polysiloxane. Polyimide showed the increased of transmittance and good chain packing with the higher refractive index for optical properties. These characterizations will be further discussed in relation to the incorporation of polysiloxane into polyimide. | en_US |
| dc.identifier.uri | http://hdl.handle.net/123456789/11322 | |
| dc.language.iso | en | en_US |
| dc.title | Synthesis and optical characterization of polyimide-co-polysiloxane | en_US |
| dc.type | Other | en_US |
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