Cargando…
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...
Autores principales: | , , , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6403591/ https://www.ncbi.nlm.nih.gov/pubmed/30966647 http://dx.doi.org/10.3390/polym10060613 |
_version_ | 1783400646549962752 |
---|---|
author | Xing, Li Wang, Yao Wang, Shichao Zhang, Yu Mao, Sui Wang, Guanghui Liu, Jixian Huang, Linjun Li, Hao Belfiore, Laurence A. Tang, Jianguo |
author_facet | Xing, Li Wang, Yao Wang, Shichao Zhang, Yu Mao, Sui Wang, Guanghui Liu, Jixian Huang, Linjun Li, Hao Belfiore, Laurence A. Tang, Jianguo |
author_sort | Xing, Li |
collection | PubMed |
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. |
format | Online Article Text |
id | pubmed-6403591 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-64035912019-04-02 Effects of Modified Graphene Oxide on Thermal and Crystallization Properties of PET Xing, Li Wang, Yao Wang, Shichao Zhang, Yu Mao, Sui Wang, Guanghui Liu, Jixian Huang, Linjun Li, Hao Belfiore, Laurence A. Tang, Jianguo Polymers (Basel) Article 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. MDPI 2018-06-04 /pmc/articles/PMC6403591/ /pubmed/30966647 http://dx.doi.org/10.3390/polym10060613 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Xing, Li Wang, Yao Wang, Shichao Zhang, Yu Mao, Sui Wang, Guanghui Liu, Jixian Huang, Linjun Li, Hao Belfiore, Laurence A. Tang, Jianguo Effects of Modified Graphene Oxide on Thermal and Crystallization Properties of PET |
title | 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_short | 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 |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6403591/ https://www.ncbi.nlm.nih.gov/pubmed/30966647 http://dx.doi.org/10.3390/polym10060613 |
work_keys_str_mv | AT xingli effectsofmodifiedgrapheneoxideonthermalandcrystallizationpropertiesofpet AT wangyao effectsofmodifiedgrapheneoxideonthermalandcrystallizationpropertiesofpet AT wangshichao effectsofmodifiedgrapheneoxideonthermalandcrystallizationpropertiesofpet AT zhangyu effectsofmodifiedgrapheneoxideonthermalandcrystallizationpropertiesofpet AT maosui effectsofmodifiedgrapheneoxideonthermalandcrystallizationpropertiesofpet AT wangguanghui effectsofmodifiedgrapheneoxideonthermalandcrystallizationpropertiesofpet AT liujixian effectsofmodifiedgrapheneoxideonthermalandcrystallizationpropertiesofpet AT huanglinjun effectsofmodifiedgrapheneoxideonthermalandcrystallizationpropertiesofpet AT lihao effectsofmodifiedgrapheneoxideonthermalandcrystallizationpropertiesofpet AT belfiorelaurencea effectsofmodifiedgrapheneoxideonthermalandcrystallizationpropertiesofpet AT tangjianguo effectsofmodifiedgrapheneoxideonthermalandcrystallizationpropertiesofpet |