Investigation of the detection limit for the determination, by pyrolysis-capillary GC, of the thickness of ultra thin PMMA layers coated on to PET film
✍ Scribed by Jin, Xigao ;Oguri, Naoki ;Onishi, Akira ;Uchino, Sigeki
- Publisher
- John Wiley and Sons
- Year
- 1992
- Tongue
- English
- Weight
- 255 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0935-6304
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✦ Synopsis
Abstract
The determination of nanometer thick layers of poly(methyl methacrylate) coated on to the surface of poly(ethylene terephthalate) film has been investigated by high resolution pyrolysis gas chromatography without sample pretreatment or modification of the instrumentation used. A good linear relationship was observed between the quantity of the characteristic pyrolysate and the thickness of the poly(methyl methacrylate) layer; the detection limit was sufficient to enable the quantitation of poly(methyl methacrylate)‐to‐poly(ethylene terephthalate) film thickness ratios of 1:20000 in composite materials.