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Viscoelastic properties of poly(methyl methacrylate) with high glass transition temperature by lithium salt addition
- Source :
- Journal of Polymer Science Part B: Polymer Physics. 54:2388-2394
- Publication Year :
- 2016
- Publisher :
- Wiley, 2016.
-
Abstract
- The effect of ion-dipole interaction between lithium cations and oxygen atoms in poly(methyl methacrylate) (PMMA), which leads to the great enhancement of glass transition temperature (Tg), on the linear viscoelastic properties is studied using binary blends of PMMA and lithium trifluoromethanesulfonate (LiCF3SO3). The strong interaction at low temperature leads to the high modulus in the glassy region even near Tg. The interaction becomes weak as increasing the temperature. Consequently, the rheological terminal region is clearly detected without a marked enhancement of steady-state compliance, although the zero-shear viscosity increases by the LiCF3SO3 addition. The result indicates that the crosslinking due to the ion-dipole interaction has a lifetime that decides the longest relaxation time. © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2016, 54, 2388–2394
- Subjects :
- Materials science
Polymers and Plastics
chemistry.chemical_element
02 engineering and technology
010402 general chemistry
01 natural sciences
Viscoelasticity
Viscosity
chemistry.chemical_compound
Rheology
Polymer chemistry
Materials Chemistry
Physical and Theoretical Chemistry
Methyl methacrylate
021001 nanoscience & nanotechnology
Condensed Matter Physics
Poly(methyl methacrylate)
0104 chemical sciences
Condensed Matter::Soft Condensed Matter
Chemical engineering
chemistry
visual_art
visual_art.visual_art_medium
Lithium
0210 nano-technology
Glass transition
Trifluoromethanesulfonate
Subjects
Details
- ISSN :
- 08876266
- Volume :
- 54
- Database :
- OpenAIRE
- Journal :
- Journal of Polymer Science Part B: Polymer Physics
- Accession number :
- edsair.doi...........7e6838218dcd73fd8d4d054d4398110a