Direct observation of interphase composition in block copolymers

Macromolecules

Volumn 41, Issue 23, 2008, Pages 9187-9191

  Saalwächter, Kay ^a   Thomann, Yi ^b   Hasenhindi, Alfred ^b   Schneider, Horst ^a  

^a MARTIN LUTHER UNIVERSITY HALLE WITTENBERG   (Germany)

^b UNIVERSITY OF FREIBURG   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

CO-MONOMERS; DIRECT OBSERVATIONS; DOUBLE-QUANTUM; HIGH-RESOLUTION MAGIC-ANGLE SPINNINGS; IN-PHASE; MOBILE DOMAINS; PROTON SPINS; SEGREGATION STRENGTHS; SPIN MAGNETIZATIONS; STYRENE BUTADIENE STYRENES; TEMPERATURE-INDUCED;

BLOCK COPOLYMERS; BUTADIENE; COPOLYMERIZATION; DISSOLUTION; EXPERIMENTS; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; PHASE INTERFACES; POLYMERS; SPIN DYNAMICS;

STYRENE;

EID: 64549133291     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma802094h     Document Type: Article

References (23)

1. Henderson, C. P.; Williams, M. C. Asymmetric composition profiles in block copolymer interphases: 1. Experimental evidence. Polymer 1985, 26, 2021-2025.
2. Henderson, C. P.; Williams, M. C. Asymmetric composition profiles in. block copolymer interphases: 2. Thermodynamic model predictions and implications. Polymer 1985, 26, 2026-2038.
3. Spontak, R. J.; Williams, M. C; Agard, D. A. Interphase composition profile in SB/SBS block copolymers, measured with electron microscopy, and microstructural implications. Macromolecules 1988, 21, 1377-1387.
4. Hashimoto, T.; Shibayama, M.; Kawai, H. Domain-boundary structure of styrene-isoprene block copolymer films cast from solution. 4. Molecular-weight dependence of lamellar microdomains. Macromolecules 1980, 13, 1237-1247.
5. Anastasiadis, S. H.; Russell, T. P.; Satija, S. K.; Majkrzak, C. F. The morphology of symmetric diblock copolymers as revealed by neutron reflectivity. J.Chem. Phys. 1990, 92, 5677-5691.
6. Noro, A.; Okuda, M.; Odamaki, F.; .Kawaguchi, D.; Torikai, N.; Takano, A.; Matsushita, Y. Chain localization and interfacial thickness in microphase-separated structures of block copolymers with variable composition distributions. Macromolecules 2006, 39, 7654-7661.
7. 2H nuclear magnetic resonance study. Polymer 1990, 31, 1838-1853.
8. Mukai, U.; Gleason, K. K.; Argon, A. S.; Cohen, R. E. Poly(dimethylsiloxane)/nylon-6 block copolymers: Molecular mobility at the interface. Macromolecules 1995, 28, 4899-4903.
9. Zumbulyadis, N.; Landry, M. R.; Russell, T. P. Interphase mixing in symmetric diblock copolymers determined by proton-deuterium CP/ MAS NMR. Macromolecules 1996, 29, 2201-2204.
10. Clauss, J.; Schmidt-Rohr, K.; Spiess, H. W. Determination of domain sizes in heterogeneous polymers by solid-state NMR. Acta Polym. 1993, 44, 1-17.
11. Cai, W. Z.; Schmidt-Rohr, K.; Egger, N.; Gerharz, B.; Spiess, H. W. A solid-state NMR study of microphase structure and segmental dynamics of poly(styrene-b-methylphenylsiloxane) diblock copolymers. Plymer 1993, 34, 267-276.
12. Landfester, K.; Spiess, H. W. Characterization of interphases in core-shell latexes by solid-state NMR. Acta Polym. 1998, 49, 45.1464.
13. 1H spin diffusion and small-angle X-ray scattering methods. Macromolecules 1998, 31, 3282-3291.
14. Tanaka, H.; Nishi, T. Study of block copolymer interface by pulsed NMR. J. Chem. Phys. 1985, 82, 4326-4331.
15. Maus, A.; Hertlein, C; Saalwächter, K. A robust proton NMR method to investigate hard/soft ratios, crystallinity, and component mobility in polymers. Macromol, Chem. Phys. 2006, 207, 1150-1158.
16. Sun, P.; Dang, Q.; Li, B.; Chen, T.; Wang, Y.; Lin, H.; Jin, Q.; Ding, D. Mobility, miscibility, and microdomain structure in nanostructured thermoset blends of epoxy resin and amphiphilic poly(ethylene oxide)block-poly(propylene oxide)-block-poly(ethylene oxide) triblock copolymers characterized by solid-state NMR. Macromolecules 2005, 38, 5654-5667.
17. Ba, Y.; Ripmeester, J. A. Multiple quantum filtering and spin exchange in solid state nuclear magnetic resonance. J. Chem. Phys. 1998, 108, 8589-8594.
18. Buda, A.; Demco, D. E.; Bertmer, M.; BlÛmich, B.; Reining, B.; Keul, H.; Höcker, H. Domain sizes in heterogeneous polymers by spin diffusion using single-quantum and double-quantum dipolar filters. Solid State Nucl, Magn. Reson. 2003, 24, 39-67.
19. Thomann, Y.; Thomann, R.; Saalwächter, K.; Heck, B.; Hasenhindl, A.; Knoll, K.; Steininger, H.; M̈lhaupt, R. Gradient interfaces in SBS and SBS/blends and their influence on morphology development and mechanical properties. Macromolecules 2008, submitted for publication.
20. Mauri, M.; Thomann, Y.; Schneider, H.; Saalwächter, K. Spin diffusion NMR at low field for the study of multiphase solids. Solid State Nucl. Magn- Reson. 2008, 34, 125-141.
21. Schmidt-Rohr, K.; Spiess, H. W. Multidimensional Solid-State NMR and Polymers; Academic Press: London, 1994.
22. 1H NMR spin, diffusion coefficients for mobile polymers through transverse relaxation measurements. Macromolecules 1999, 32, 4686-4691.
23. Jia, Z.; Zhang, L.; Chen, Q.; Hansen, E. W. Proton spin diffusion in polyethylene as a function of magic-angle spinning rate. A phenomenological approach. J. Phys. Chem. A 2008, 112, 1228-1233.