Fundamental Molecular Design for Precise Control of Thermoresponsiveness of Organic Polymers by Using Ternary Systems
Fundamental Molecular Design for Precise Control of Thermoresponsiveness of Organic Polymers by Using Ternary Systems
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DOI：
10.1021/ja301688u
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发表时间：
2012-05-23
影响因子：
15
通讯作者：
Sada, Kazuki
中科院分区：
文献类型：
--
作者：
Amemori, Shogo;Kokado, Kenta;Sada, Kazuki
通过添加小有机分子（或“效应器”），已经实现了溶液中热敏聚合物的从头设计。氢键作为一种吸引的聚合物-聚合物或聚合物-效应相互作用，在响应性上占据主导地位，导致lst型和ucst型相变之间的轻松切换，控制转变温度，以及两种转变的进一步重合。高亲和力的小分子诱导ucst型相行为，低亲和力的小分子诱导lcst型相行为。
The de novo design of thermosensitive polymers in solution has been achieved by using the addition of small organic molecules (or "effectors"). Hydrogen bonding as an attractive polymer-polymer or polymer-effector interaction substantially dominates the responsivity, causing facile switching between LCST-type and UCST-type phase transitions, control of the transition temperature, and further coincidence of the two transitions. Small molecules having a high affinity for the polymer induce UCST-type phase behavior, whereas those having a low affinity for the polymer showed LCST-type phase behavior.