SANS Study of Ring Topology Effects on the Miscibility
of Polymer Blends
Posted on 2018-02-22 - 19:19
Highly purified hydrogenous
ring poly(4-trimethylsilylstyrene)
(h-PT) and deuterated ring polyisoprene (d-PI) samples as well as their linear counterparts were
prepared, and the miscibility of three kinds of polymer blends, i.e.,
linear–linear, ring–linear, and ring–ring, denoted
as L–L, R–L, and R–R, respectively, with all
50/50 vol % was evaluated by small angle neutron scattering (SANS)
measurements. PT and PI are known as a miscible polymer pair with
lower critical solution temperature (LCST) type phase diagram. At
low-q regime of the scattering profiles, R–R
blend exhibits much higher scattering intensity than L–L and
R–L, while the latter two show similar profiles. Moreover,
from Zimm’s analysis, the spinodal temperature of R–R
was estimated to be about 100 °C lower than the other two blends,
L–L and R–L. These results suggest that the miscibility
of R–R is considerably lower than the other two blends, which
is a clear manifestation of the topological effect on the phase behavior
of the present blend.
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Kobayashi, Yuki; Doi, Yuya; Sarah Abdul Rahman, Siti; Kim, Eunhye; Kim, Tae-Hwan; Takano, Atsushi; et al. (2018). SANS Study of Ring Topology Effects on the Miscibility
of Polymer Blends. ACS Publications. Collection. https://doi.org/10.1021/acs.macromol.7b02359
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AUTHORS (7)
YK
Yuki Kobayashi
YD
Yuya Doi
SS
Siti Sarah Abdul Rahman
EK
Eunhye Kim
TK
Tae-Hwan Kim
AT
Atsushi Takano
YM
Yushu Matsushita