Reversibly Tunable Lower
Critical Solution Temperature
Utilizing Host–Guest Complexation of Pillar[5]arene with Triethylene
Oxide Substituents
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Abstract
A thermoresponsive macromolecule consisting of 10 outer
triethylene
oxide groups and a pillar[5]arene core was prepared. The macromolecule
showed lower critical solution temperature behavior. Moreover, its
clouding point can be reversibly tuned based on the addition of guest
and host compounds; the clouding point increased upon addition of
a guest didecylviologen salt and decreased when the competitive host
cucurbit[7]uril was added