Publications
Detailed Information
Determination of Microphase Structure and Scale of Mixing in Poly(ε-caprolactone) (PCL)/Poly(vinyl chloride) (PVC) Blend by High-Resolution Solid-State -NMR Spectroscopy with Magic Angle Spinning and Cross Polarization
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kwak, Seung-Yeop | - |
dc.date.accessioned | 2009-12-15T10:51:17Z | - |
dc.date.available | 2009-12-15T10:51:17Z | - |
dc.date.issued | 1994 | - |
dc.identifier.citation | J. Appl. Polym. Sci., 53, 1823 | en |
dc.identifier.issn | 0021-8995 | - |
dc.identifier.uri | https://hdl.handle.net/10371/20979 | - |
dc.description.abstract | High-resolution solid-state, pulsed Fourier-transform (FT) 13C-nuclear magnetic resonance
(NMR) spectroscopy with magic angle spinning (MAS) and cross polarization (CP) was applied to a mechanical blend of poly-c-caprolactone (PCL) and poly(viny1 chloride) (PVC) with 50/50 weight ratio (% ) whose composition results in very complex morphology and phase structure in the solid state. Proton spin-lattice relaxation times, TI ('H) and Tip( 'H) , were used as a probe to determine the microphase structure, the degree of homogeneity in terms of the domain size, and the state of mixing of the blend. In particular, T1,('H ) was shown to be able to distinguish the separated domains at a level of a few nanometers; the scale of mixing was evaluated from the approximation based on spin-diffusion phenomenon to be - 4.7 nm below which two polymers were partially mixed and above which they were homogeneously mixed. Treatment of the Tip( 'H) data with two exponential decay functions resulted in a resolution of individual TI@'H( ) into rigid and mobile components, from which more detailed information on the phase structure and state of mixing were obtained | en |
dc.description.sponsorship | The author greatly appreciates Professor N. Nakajima at
The University of Akron for his stimulating and valuable discussions and Drs. F. Morin and H. S. Lee at McGill University for their assistance in performing the NMR experiments. | en |
dc.language.iso | en | - |
dc.publisher | John Wiley & Sons | en |
dc.title | Determination of Microphase Structure and Scale of Mixing in Poly(ε-caprolactone) (PCL)/Poly(vinyl chloride) (PVC) Blend by High-Resolution Solid-State -NMR Spectroscopy with Magic Angle Spinning and Cross Polarization | en |
dc.type | Article | en |
dc.contributor.AlternativeAuthor | 곽승엽 | - |
dc.identifier.doi | 10.1002/app.1994.070531312 | - |
- Appears in Collections:
- Files in This Item:
- There are no files associated with this item.
Item View & Download Count
Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.