Structure and Morphology of Poly(<italic style="font-style: italic">ε</italic>-caprolactone) Heterogeneous Shish-Kebab Structure Induced by Poly(lactic acid) Nanofibers

Zhong-Hua Chang; Dong-Fang Wang; Yi-Yang Xu; Meng-Yuan Zhang; Qian Li

doi:10.1007/s10118-022-2747-8

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Structure and Morphology of Poly(ε-caprolactone) Heterogeneous Shish-Kebab Structure Induced by Poly(lactic acid) Nanofibers

RESEARCH ARTICLE | Updated：2022-09-23

- Structure and Morphology of Poly(ε-caprolactone) Heterogeneous Shish-Kebab Structure Induced by Poly(lactic acid) Nanofibers
- Chinese Journal of Polymer Science Vol. 40, Issue 10, Pages: 1223-1232(2022)
- Affiliations：
  
  a.School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China
  b.National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
  c.School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
- Author bio：
  
  qianli@zzu.edu.cn
- Funds：
- DOI：10.1007/s10118-022-2747-8
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Zhong-Hua Chang, Dong-Fang Wang, Yi-Yang Xu, et al. Structure and Morphology of Poly(ε-caprolactone) Heterogeneous Shish-Kebab Structure Induced by Poly(lactic acid) Nanofibers. [J]. Chinese Journal of Polymer Science 40(10):1223-1232(2022)
DOI：

Zhong-Hua Chang, Dong-Fang Wang, Yi-Yang Xu, et al. Structure and Morphology of Poly(ε-caprolactone) Heterogeneous Shish-Kebab Structure Induced by Poly(lactic acid) Nanofibers. [J]. Chinese Journal of Polymer Science 40(10):1223-1232(2022) DOI： 10.1007/s10118-022-2747-8.

摘要

The hydrogen bonding interfacial interaction between PCL and PLA nanofibers modified by sodium hydroxide provides the driving force for the formation of the PLA/PCL heterogeneous shish-kebab structure. The heterogeneous structure provides a way to combine two poorly compatible polyester polymers.

Abstract

In recent years, the hybrid shish-kebab structure with excellent physical properties and functionalities has attracted much attention because it provides a way of blending nanofibers with different properties into polymer matrix in a regular arrangement. It is often not easy to induce the formation of the hierarchically ordered structure for the semi-crystalline polymer in heterogeneous shish-kebab structure. A poly(lactic acid) (PLA)/poly(,ε,-caprolactone) (PCL) heterogeneous shish-kebab structure,i.e., the PCL crystals periodically crystallized onto PLA nanofibers, was successfully created and the interfacial crystal morphology of the PLA/PCL heterogeneous shish-kebab structure was observed using scanning electron microscopy and atomic force microscopy. NaOH aqueous solution was applied to modify the surface of the PLA nanofibers to produce adsorption sites and carboxyl groups. The total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) and X-ray diffraction (XRD) results demonstrated that the formation of the heterogeneous shish-kebab structure was mainly due to the hydrogen bonding interaction between the kebab and shish interface, and the growth process of the kebab crystals also promoted the crystallization of the shish fibers. This heterogeneous nanostructure of biodegradable polymers will have great applications in tissue engineering and regenerative medicine.

关键词

Keywords

Shish-kebab structurePCLPLACrystallizationSurface modification

references

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Structure and Morphology of Poly(ε-caprolactone) Heterogeneous Shish-Kebab Structure Induced by Poly(lactic acid) Nanofibers

DOI：10.1007/s10118-022-2747-8

摘要

Abstract

关键词

Keywords

references