Hyperbranched Polyglycidol- Functionalized Carbon Nanotubes via In Situ Polymerization on the Crystallization Behavior of PLA

A hyperbranched polyglycidol-functionalized carbon nanotubes were synthesized via an anionicring-opening polymerization of ethylene glycol. Then polylactic acid nanocomposites were prepared by a solution blending method using carbon nanotubes modified with hyperbranched glycidol as a nucleating agen...

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Bibliographic Details
Published in:ECS journal of solid state science and technology 2023-04, Vol.12 (4), p.41009
Main Authors: Liu, Xiaodong, Wang, Maoju, Wu, Dongliang, Sheng, Yujing, Song, Shuoyao, Zhang, Ruliang
Format: Article
Language:English
Subjects:
Carbon Nanotubes
Crystalline Properties
Hyperbranched Polyglycidol
Polylactic acid
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Summary:A hyperbranched polyglycidol-functionalized carbon nanotubes were synthesized via an anionicring-opening polymerization of ethylene glycol. Then polylactic acid nanocomposites were prepared by a solution blending method using carbon nanotubes modified with hyperbranched glycidol as a nucleating agent. The crystallization behavior of PLA composites was studied by DSC. Among them, the carbon Nanotubes modified by hyperbranched molecules has a better effect on improving the crystalline properties of polylactic acid. Compared with PLA, the crystallinity of the PLA composite with CNTs is increased by 5.9%, while the crystallinity of the PLA composite with HPG-CNTs is increased by 13.8%. The semi-crystallization time of HPG-modified CNT is 4.34% higher than PLA/CNTs and 11.2% higher than PLA. The existence of the nano-nucleating agent can effectively improve the crystallization rate of polylactic acid, which can improve the feasibility of polylactic acid in industrial processing.
ISSN:2162-8769
2162-8777
DOI:10.1149/2162-8777/accd1f