Optical properties of pure and modified poly(vinyl chloride)

International Journal of Industrial Chemistry

دوره 4، شماره 1، اسفند 2013، صفحه 30-37

نوع مقاله: research article

شناسه دیجیتال (DOI): https://doi.org/10.1186/2228-5547-4-4

نویسندگان

Emad Yousif^{* 1}؛ Mustafa Abdallh¹؛ Hassan Hashim²؛ Nadia Salih³؛ Jumat Salimon³؛ Bashar Mudhaffar Abdullah³؛ Yip-Foo Win⁴

¹Department of Chemistry, College of Science, Al-Nahrain University, Baghdad, 10072, Iraq

²Department of Physics, College of Science, Al-Nahrain University, Baghdad, 10072, Iraq

³School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Selangor, 43600, Malaysia

⁴Department of Chemical Science, Faculty of Science, Universiti Tunku Abdul Rahman, Perak Campus, Jalan Universiti, Bandar Barat, Kampar, Perak, 31900, Malaysia

چکیده

Background
In this study, poly(vinyl chloride) (PVC) is considered one of the most versatile plastics. It is the second largest manufactured resin by volume worldwide.
Results
To study the optical properties of modified PVC containing 1,3,4-thiadiazole and phthalyl groups in the repeating units, thin films of the prepared polymers (P I, P II, P III, P IV, P V, and PVC) were casted from tetrahydrofuran solvent with a thickness of 30 μm. The optical properties were studied in the range of 200 to 600 nm, and the optical data were analyzed and interpreted in terms of the theory of phonon-assisted direct electronic transitions; the measured E_g of pure and modified PVC increases in the following order:


PII,PIV,PV,PI,PIII,andPVC−→−−−−−−−−−−−−−−−−−−−−−−−−−−.



 

Also, the refractive index was measured.
Conclusions
The results showed that for all compositions, the refractive index decreases with increasing wavelength.

کلیدواژه‌ها

PVC؛ Optical properties؛ Energy band gap