Abstract
The phase behavior of statistical copolymers composed of (4-tert-butylstyrene) (B) and (4-tert-butoxystyrene) (O), abbreviated as s-BO, with polyisoprene (I) was investigated by optical microscopic (OM) observation and small-angle neutron scattering (SANS) measurements. It has been known that B/I blend shows lower critical solution temperature (LCST) type phase diagram, while O/I blend has upper critical solution temperature (UCST) type one. Several blends of s-BOs having mol fraction of B, mB, comparable to 0.50, with I showed both UCST and LCST type phase diagram. Furthermore, UCST type phase behavior was observed for blends having small mB, while LCST type one was for that of large mB at all used temperatures. Hence, the phase behavior of s-BO/I blend can be understood as a result of the competition of two interactions having opposite temperature dependence.
| Original language | English |
|---|---|
| Pages (from-to) | 2272-2280 |
| Number of pages | 9 |
| Journal | Journal of Polymer Science, Part B: Polymer Physics |
| Volume | 47 |
| Issue number | 22 |
| DOIs | |
| Publication status | Published - Nov 15 2009 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Materials Chemistry
- Polymers and Plastics
- Condensed Matter Physics
- Physical and Theoretical Chemistry
Cite this
Phase Behavior of Poly(4-tert-butylstyrene-stat-4-tertbutoxystyrene)/ polyisoprene blends with competitive interactions. / Rahman, Siti Arah Abdul; Kawaguchi, Daisuke; Ito, Daisaku; Takano, Atsushi; Matsushita, Yushu.
In: Journal of Polymer Science, Part B: Polymer Physics, Vol. 47, No. 22, 15.11.2009, p. 2272-2280.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Phase Behavior of Poly(4-tert-butylstyrene-stat-4-tertbutoxystyrene)/ polyisoprene blends with competitive interactions
AU - Rahman, Siti Arah Abdul
AU - Kawaguchi, Daisuke
AU - Ito, Daisaku
AU - Takano, Atsushi
AU - Matsushita, Yushu
PY - 2009/11/15
Y1 - 2009/11/15
N2 - The phase behavior of statistical copolymers composed of (4-tert-butylstyrene) (B) and (4-tert-butoxystyrene) (O), abbreviated as s-BO, with polyisoprene (I) was investigated by optical microscopic (OM) observation and small-angle neutron scattering (SANS) measurements. It has been known that B/I blend shows lower critical solution temperature (LCST) type phase diagram, while O/I blend has upper critical solution temperature (UCST) type one. Several blends of s-BOs having mol fraction of B, mB, comparable to 0.50, with I showed both UCST and LCST type phase diagram. Furthermore, UCST type phase behavior was observed for blends having small mB, while LCST type one was for that of large mB at all used temperatures. Hence, the phase behavior of s-BO/I blend can be understood as a result of the competition of two interactions having opposite temperature dependence.
AB - The phase behavior of statistical copolymers composed of (4-tert-butylstyrene) (B) and (4-tert-butoxystyrene) (O), abbreviated as s-BO, with polyisoprene (I) was investigated by optical microscopic (OM) observation and small-angle neutron scattering (SANS) measurements. It has been known that B/I blend shows lower critical solution temperature (LCST) type phase diagram, while O/I blend has upper critical solution temperature (UCST) type one. Several blends of s-BOs having mol fraction of B, mB, comparable to 0.50, with I showed both UCST and LCST type phase diagram. Furthermore, UCST type phase behavior was observed for blends having small mB, while LCST type one was for that of large mB at all used temperatures. Hence, the phase behavior of s-BO/I blend can be understood as a result of the competition of two interactions having opposite temperature dependence.
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U2 - 10.1002/polb.21824
DO - 10.1002/polb.21824
M3 - Article
AN - SCOPUS:70350511114
VL - 47
SP - 2272
EP - 2280
JO - Journal of Polymer Science, Part B: Polymer Physics
JF - Journal of Polymer Science, Part B: Polymer Physics
SN - 0887-6266
IS - 22
ER -