THE STUDY OF THE THERMAL STABILITY OF POLY (VINYL- CHLORIDE) WITH DIFFERENT MOLECULAR WEIGHT

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TAGHI ZADEH M.T.; DASTAR LIGHVAN H.

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Journal: JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT) Year:2007 | Volume:33 | Issue:2 (SECTION: CHEMISTRY) Page(s): 25-32

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Title

THE STUDY OF THE THERMAL STABILITY OF POLY (VINYL- CHLORIDE) WITH DIFFERENT MOLECULAR WEIGHT

Author(s)

TAGHI ZADEH M.T. | DASTAR LIGHVAN H. | Issue Writer Certificate

Keywords

POLY (VINYL CHLORIDE)Q3

THERMAL DEGRADATIONQ3

DEHYDROCHLORINATIONQ3

MOLECULAR WEIGHTQ3

Abstract

This study investigated the influence of the MOLECULAR WEIGHT on the thermal stability of poly (vinyl chloride) (PVC) under nitrogen atmosphere was studied by bromometry titration at various temperatures (160-190oC). The extent of dehydorchlorination (%conversion) was calculated from the ratio of the HCl evolved to the amount available in the polymer. The intrinsic viscosities of solutions to deduce the effect of the MOLECULAR WEIGHT on the degradation of polymer were calculated. In addition to the course of the DEHYDROCHLORINATION, the spectral changes in the visible and infrared regions have been investigated. It was found that the number- average MOLECULAR WEIGHT (45.000, 104000) slightly affected the thermal DEHYDROCHLORINATION. The experimental results also indicated the relationships between MOLECULAR WEIGHT and structural defects.

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APA: Copy

TAGHI ZADEH, M.T., & DASTAR LIGHVAN, H.. (2007). THE STUDY OF THE THERMAL STABILITY OF POLY (VINYL- CHLORIDE) WITH DIFFERENT MOLECULAR WEIGHT. JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT), 33(2 (SECTION: CHEMISTRY)), 25-32. SID. https://sid.ir/paper/385977/en

Vancouver: Copy

TAGHI ZADEH M.T., DASTAR LIGHVAN H.. THE STUDY OF THE THERMAL STABILITY OF POLY (VINYL- CHLORIDE) WITH DIFFERENT MOLECULAR WEIGHT. JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT)[Internet]. 2007;33(2 (SECTION: CHEMISTRY)):25-32. Available from: https://sid.ir/paper/385977/en

IEEE: Copy

M.T. TAGHI ZADEH, and H. DASTAR LIGHVAN, “THE STUDY OF THE THERMAL STABILITY OF POLY (VINYL- CHLORIDE) WITH DIFFERENT MOLECULAR WEIGHT,” JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT), vol. 33, no. 2 (SECTION: CHEMISTRY), pp. 25–32, 2007, [Online]. Available: https://sid.ir/paper/385977/en

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