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Polymer Blends and Composites

Reference work entry

Abstract

In this chapter, first, the investigations of interpolymer interaction, miscibility, and composition change during phase separation for polymer blends are addressed. The hydrogen bonding between polymers is one of key interaction among the interpolymer interactions, causing the apparent lineshape change on 13C NMR spectrum. Based on the effects of 1H spin diffusion on 1H spin-lattice relaxation T1, the miscibility on several nm or several tens of nm level is discussed. The close proximity between the component polymers revealed by two-dimensional 1H-1H exchange NMR is shown. Similarly, the phase separation process is discussed by the 1H spin diffusion behavior on T1.

Second, the interaction between inorganic fillers and polymer and stability of the organic modifier treated on the clay surface for polymer nanocomposites are described. The interaction between filler surface and polymer is detected by two-dimensional heteronuclear correlation NMR measurement. The stability of the organic modifiers on the clay surface is clarified by the simple 1H MAS spectra. The paramagnetic source naturally containing in clay obscures the NMR signal, but it is useful to evaluate the stability of the organic modifiers.

Keywords

Miscibility Phase separation Interpolymer interaction Spin diffusion Spin-lattice relaxation Spinodal decomposition Montmorillonite Hectorite HETCOR CRAMPS Organic modifiers Polymer blend Nanocomposite 

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Applied ChemistryNational Defense AcademyYokosukaJapan

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