Nanomechanical and Chemical Mapping of the Structure and Interfacial Properties in Immiscible Ternary Polymer Systems

Hao-Xuan Li; Thomas P. Russell; Dong Wang

doi:10.1007/s10118-021-2567-2

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Nanomechanical and Chemical Mapping of the Structure and Interfacial Properties in Immiscible Ternary Polymer Systems

RAPID COMMUNICATION | Updated：2021-03-16

- Nanomechanical and Chemical Mapping of the Structure and Interfacial Properties in Immiscible Ternary Polymer Systems
- Chinese Journal of Polymer Science Vol. 39, Issue 6, Pages: 651-658(2021)
- Affiliations：
  
  a.State Key Laboratory of Organic−Inorganic Composites & Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
  b.Polymer Science and Engineering Department, University of Massachusetts Amherst, Massachusetts 01003, United States
  c.Materials Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
- Author bio：
  
  dwang@mail.buct.edu.cn
- Funds：
- DOI：10.1007/s10118-021-2567-2
  CLC：
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Hao-Xuan Li, Thomas P. Russell, Dong Wang. Nanomechanical and Chemical Mapping of the Structure and Interfacial Properties in Immiscible Ternary Polymer Systems. [J]. Chinese Journal of Polymer Science 39(6):651-658(2021)
DOI：

Hao-Xuan Li, Thomas P. Russell, Dong Wang. Nanomechanical and Chemical Mapping of the Structure and Interfacial Properties in Immiscible Ternary Polymer Systems. [J]. Chinese Journal of Polymer Science 39(6):651-658(2021) DOI： 10.1007/s10118-021-2567-2.

摘要

Abstract

It is a challenge to identify each phase in a multi-component polymer system and uniquely determine the interfacial properties between the different phases. Using atomic force microscopy nanomechanical mapping (AFM-NM) and AFM-based infrared spectroscopy (AFM-IR), we identify each phase, visualize structural developments, and determine the interfacial properties in a blend of three polymers: high-density polyethylene (HDPE), polyamide (PA6) and poly(styrene-,b,-ethylene-,co,-butylene-,b,-styrene) (SEBS). Each phase can be identified from the Young’s modulus, along with the structural development within the phases before and after compatibilization. The interfacial widths between HDPE/PA6, HDPE/SEBS and SEBS/PA6 were determined independently in one measurement from a Young’s modulus map. The structural, mechanical property development and identity of the phases were determined by AFM-NM, while AFM-IR, providing complementary chemical information, identified interfacial reactions, showed the chemical affinity of a compatibilizer with the component phases, and mapped the distribution of the compatibilizer in the ternary polymer blends. The chemical, structural and interfacial information obtained by these measurements provide information that is essential for producing mechanically robust materials from incompatible mixtures of polymers.

关键词

Keywords

AFM nanomechanical mappingAFM infrared spectroscopyMulti-component systemsInterfacial structureInterfacial properties

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