Effects of Modified Graphene Oxide on Thermal and Crystallization Properties of PET
In this article, graphene oxide nanosheets grafted with low molecular weight poly(ethylene terephthalate) were in situ synthesized via carboxylation, acyl chlorination and grafting modification in order to improve the compatibility between GO and PET phases and enhance the thermal stability and crys...
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Format: | Article |
Language: | English |
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MDPI AG
2018-06-01
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Series: | Polymers |
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Online Access: | http://www.mdpi.com/2073-4360/10/6/613 |
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record_format |
Article |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Li Xing Yao Wang Shichao Wang Yu Zhang Sui Mao Guanghui Wang Jixian Liu Linjun Huang Hao Li Laurence A. Belfiore Jianguo Tang |
spellingShingle |
Li Xing Yao Wang Shichao Wang Yu Zhang Sui Mao Guanghui Wang Jixian Liu Linjun Huang Hao Li Laurence A. Belfiore Jianguo Tang Effects of Modified Graphene Oxide on Thermal and Crystallization Properties of PET Polymers PET functionalized graphene oxide thermal stability crystallization property |
author_facet |
Li Xing Yao Wang Shichao Wang Yu Zhang Sui Mao Guanghui Wang Jixian Liu Linjun Huang Hao Li Laurence A. Belfiore Jianguo Tang |
author_sort |
Li Xing |
title |
Effects of Modified Graphene Oxide on Thermal and Crystallization Properties of PET |
title_short |
Effects of Modified Graphene Oxide on Thermal and Crystallization Properties of PET |
title_full |
Effects of Modified Graphene Oxide on Thermal and Crystallization Properties of PET |
title_fullStr |
Effects of Modified Graphene Oxide on Thermal and Crystallization Properties of PET |
title_full_unstemmed |
Effects of Modified Graphene Oxide on Thermal and Crystallization Properties of PET |
title_sort |
effects of modified graphene oxide on thermal and crystallization properties of pet |
publisher |
MDPI AG |
series |
Polymers |
issn |
2073-4360 |
publishDate |
2018-06-01 |
description |
In this article, graphene oxide nanosheets grafted with low molecular weight poly(ethylene terephthalate) were in situ synthesized via carboxylation, acyl chlorination and grafting modification in order to improve the compatibility between GO and PET phases and enhance the thermal stability and crystallization properties of PET. Fourier Transform Infrared (FTIR), X-ray Photoelectron Spectroscopy (XPS), and Atomic Force Microscopy (AFM) characterization results demonstrated that LMPET chains have been successfully grafted onto the surface of GO. To further investigate the influence of modified GO on properties of PET, modified PET was prepared by incorporating the GL-g-LMPET nanofillers into the PET matrix using the melt-blending method. Due to the similar polarity and strong interaction between LMPET and PET molecules, GL-g-LMPET nanofillers were homogeneously dispersed in PET matrix. Thermal properties and crystallization properties of obtained nanocomposites were systematically characterized using Differential Scanning Calorimetry (DSC), X-ray Diffraction (XRD), and Thermo Gravimetric Analysis (TGA). Results show that GL-g-LMPET nanofillers could improve the thermal stability of PET, e.g., increase up to 16.6 °C in temperature at the maximum rate of weight loss. In addition, the GL-g-LMPET also acts as an efficient nucleating agent for PET, exhibiting (1) higher crystallization temperatures; (2) higher degrees of crystallinity; and (3) faster rates of crystallization. |
topic |
PET functionalized graphene oxide thermal stability crystallization property |
url |
http://www.mdpi.com/2073-4360/10/6/613 |
work_keys_str_mv |
AT lixing effectsofmodifiedgrapheneoxideonthermalandcrystallizationpropertiesofpet AT yaowang effectsofmodifiedgrapheneoxideonthermalandcrystallizationpropertiesofpet AT shichaowang effectsofmodifiedgrapheneoxideonthermalandcrystallizationpropertiesofpet AT yuzhang effectsofmodifiedgrapheneoxideonthermalandcrystallizationpropertiesofpet AT suimao effectsofmodifiedgrapheneoxideonthermalandcrystallizationpropertiesofpet AT guanghuiwang effectsofmodifiedgrapheneoxideonthermalandcrystallizationpropertiesofpet AT jixianliu effectsofmodifiedgrapheneoxideonthermalandcrystallizationpropertiesofpet AT linjunhuang effectsofmodifiedgrapheneoxideonthermalandcrystallizationpropertiesofpet AT haoli effectsofmodifiedgrapheneoxideonthermalandcrystallizationpropertiesofpet AT laurenceabelfiore effectsofmodifiedgrapheneoxideonthermalandcrystallizationpropertiesofpet AT jianguotang effectsofmodifiedgrapheneoxideonthermalandcrystallizationpropertiesofpet |
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1725604140938166272 |
spelling |
doaj-ecc893350a3c40e6857ac2205e5c1cf32020-11-24T23:11:30ZengMDPI AGPolymers2073-43602018-06-0110661310.3390/polym10060613polym10060613Effects of Modified Graphene Oxide on Thermal and Crystallization Properties of PETLi Xing0Yao Wang1Shichao Wang2Yu Zhang3Sui Mao4Guanghui Wang5Jixian Liu6Linjun Huang7Hao Li8Laurence A. Belfiore9Jianguo Tang10Institute of Hybrid Materials, The National Base of International Scientific and Technological Cooperation on Hybrid Materials, The National Base of Polymer Hybrid Materials in the Programme of Introducing Talents Dicipline to Universities, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, ChinaInstitute of Hybrid Materials, The National Base of International Scientific and Technological Cooperation on Hybrid Materials, The National Base of Polymer Hybrid Materials in the Programme of Introducing Talents Dicipline to Universities, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, ChinaInstitute of Hybrid Materials, The National Base of International Scientific and Technological Cooperation on Hybrid Materials, The National Base of Polymer Hybrid Materials in the Programme of Introducing Talents Dicipline to Universities, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, ChinaInstitute of Hybrid Materials, The National Base of International Scientific and Technological Cooperation on Hybrid Materials, The National Base of Polymer Hybrid Materials in the Programme of Introducing Talents Dicipline to Universities, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, ChinaInstitute of Hybrid Materials, The National Base of International Scientific and Technological Cooperation on Hybrid Materials, The National Base of Polymer Hybrid Materials in the Programme of Introducing Talents Dicipline to Universities, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, ChinaInstitute of Hybrid Materials, The National Base of International Scientific and Technological Cooperation on Hybrid Materials, The National Base of Polymer Hybrid Materials in the Programme of Introducing Talents Dicipline to Universities, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, ChinaInstitute of Hybrid Materials, The National Base of International Scientific and Technological Cooperation on Hybrid Materials, The National Base of Polymer Hybrid Materials in the Programme of Introducing Talents Dicipline to Universities, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, ChinaInstitute of Hybrid Materials, The National Base of International Scientific and Technological Cooperation on Hybrid Materials, The National Base of Polymer Hybrid Materials in the Programme of Introducing Talents Dicipline to Universities, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, ChinaInstitute of Hybrid Materials, The National Base of International Scientific and Technological Cooperation on Hybrid Materials, The National Base of Polymer Hybrid Materials in the Programme of Introducing Talents Dicipline to Universities, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, ChinaInstitute of Hybrid Materials, The National Base of International Scientific and Technological Cooperation on Hybrid Materials, The National Base of Polymer Hybrid Materials in the Programme of Introducing Talents Dicipline to Universities, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, ChinaInstitute of Hybrid Materials, The National Base of International Scientific and Technological Cooperation on Hybrid Materials, The National Base of Polymer Hybrid Materials in the Programme of Introducing Talents Dicipline to Universities, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, ChinaIn this article, graphene oxide nanosheets grafted with low molecular weight poly(ethylene terephthalate) were in situ synthesized via carboxylation, acyl chlorination and grafting modification in order to improve the compatibility between GO and PET phases and enhance the thermal stability and crystallization properties of PET. Fourier Transform Infrared (FTIR), X-ray Photoelectron Spectroscopy (XPS), and Atomic Force Microscopy (AFM) characterization results demonstrated that LMPET chains have been successfully grafted onto the surface of GO. To further investigate the influence of modified GO on properties of PET, modified PET was prepared by incorporating the GL-g-LMPET nanofillers into the PET matrix using the melt-blending method. Due to the similar polarity and strong interaction between LMPET and PET molecules, GL-g-LMPET nanofillers were homogeneously dispersed in PET matrix. Thermal properties and crystallization properties of obtained nanocomposites were systematically characterized using Differential Scanning Calorimetry (DSC), X-ray Diffraction (XRD), and Thermo Gravimetric Analysis (TGA). Results show that GL-g-LMPET nanofillers could improve the thermal stability of PET, e.g., increase up to 16.6 °C in temperature at the maximum rate of weight loss. In addition, the GL-g-LMPET also acts as an efficient nucleating agent for PET, exhibiting (1) higher crystallization temperatures; (2) higher degrees of crystallinity; and (3) faster rates of crystallization.http://www.mdpi.com/2073-4360/10/6/613PETfunctionalized graphene oxidethermal stabilitycrystallization property |