COMPREHENSIVE STUDY ON THERMAL AND DYNAMIC MECHANICAL BEHAVIOR OF PET/PEN BLENDS

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KHONAKDAR HOSSIEN ALI

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Journal: Iranian Journal of Polymer Science and Technology Year:2013 | Volume:26 | Issue:4 (ISSUE NO. 126) Page(s): 304-316

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Title

COMPREHENSIVE STUDY ON THERMAL AND DYNAMIC MECHANICAL BEHAVIOR OF PET/PEN BLENDS

Author(s)

KHONAKDAR HOSSIEN ALI | Issue Writer Certificate

Keywords

POLY (ETHYLENE TEREPHTHALATE)Q1

POLY (ETHYLENE NAPHTHA LATE)Q2

BLENDQ3

TRANS ESTERIFICATIONQ2

THERMAL BEHAVIORQ3

Abstract

The effects of interchange reactions on the crystallization, melting, and dynamic mechanical THERMAL BEHAVIOR of poly (ethylene terephthalate)/ poly (ethylene naphtha late) (PET/PEN) BLENDs prepared by melt mixing have been investigated. The occurrence of interchange reactions has been verified by proton nuclear magnetic resonance (1H NMR). Differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) were used to study the effect of TRANS ESTERIFICATION reaction on crystallinity, melting and dynamic mechanical properties of the BLENDs. It was found that by extension of TRANS ESTERIFICATION, the miscibility of the BLEND increased. Time and temperature of mixing were most important parameters affecting the TRANS ESTERIFICATION level. On BLENDing, the melt crystallinity of poly (ethylene terephthalate) was reduced and in contrast that of poly (ethylene naphtha late) was increased; where melt crystallization temperatures of both phases were depressed. A single composition-dependent glass transition peak, which was indicative of miscibility, was detected in second heating thermo grams of the BLENDs. It was observed that cold crystallization of poly (ethylene terephthalate) phase decreases while that of poly (ethylene naphtha late) was suppressed on BLENDing. It was found that each phase crystallized individually and a melting point depression which was an indication of compatibility was evident at the same time. Dynamic mechanical analysis confirmed the proton nuclear magnetic resonance and differential scanning calorimetry results. The secondary viscoelastic transitions of each phase in BLEND samples were also probed. Increment of peak area in the loss factor has implied the miscibility of BLEND due to formation of poly (ethylene terephthalate)/poly (ethylene naphtha late) random copolymer.

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APA: Copy

KHONAKDAR, HOSSIEN ALI. (2013). COMPREHENSIVE STUDY ON THERMAL AND DYNAMIC MECHANICAL BEHAVIOR OF PET/PEN BLENDS. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), 26(4 (ISSUE NO. 126)), 304-316. SID. https://sid.ir/paper/6388/en

Vancouver: Copy

KHONAKDAR HOSSIEN ALI. COMPREHENSIVE STUDY ON THERMAL AND DYNAMIC MECHANICAL BEHAVIOR OF PET/PEN BLENDS. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN)[Internet]. 2013;26(4 (ISSUE NO. 126)):304-316. Available from: https://sid.ir/paper/6388/en

IEEE: Copy

HOSSIEN ALI KHONAKDAR, “COMPREHENSIVE STUDY ON THERMAL AND DYNAMIC MECHANICAL BEHAVIOR OF PET/PEN BLENDS,” IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), vol. 26, no. 4 (ISSUE NO. 126), pp. 304–316, 2013, [Online]. Available: https://sid.ir/paper/6388/en

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