Point by point comparison of two thermosensitive polymers exhibiting a similar LCST:: Is the age of poly(NIPAM) over?
Point by point comparison of two thermosensitive polymers exhibiting a similar LCST:: Is the age of poly(NIPAM) over?
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DOI：
10.1021/ja065324n
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发表时间：
2006-10-11
影响因子：
15
通讯作者：
Hoth, Ann
中科院分区：
文献类型：
--
作者：
Lutz, Jean-Francois;Akdemir, Oezguer;Hoth, Ann
本通讯比较了由95%的甲基丙烯酸2-（2-甲氧基乙氧基）乙酯（MEO 2 MA）和5%的低聚（乙二醇）甲基丙烯酸酯（OEGMA，Mn= 475 g·mol-1）组成的定义明确的共聚物和具有相似聚合度和链端的聚（N-异丙基丙烯酰胺）（PNIPAM）样品在稀水溶液中的热敏性。发现P（MEO 2 MA-co-OEGMA）的温度响应行为总体上相当，并且在某些情况下上级PNIPAM。因此，P（MEO 2 MA-co-OEGMA）共聚物可以被认为是一种理想的结构，它将聚乙二醇和PNIPAM的性能联合收割机结合在一个单一的大分子中。
The present Communication compares the thermosensitivity in dilute aqueous solutions of well-defined copolymers composed of 95% of 2-(2-methoxyethoxy)ethyl methacrylate (MEO2MA) and 5% of oligo(ethylene glycol) methacrylate (OEGMA,Mn= 475 g·mol-1) and poly(N-isopropylacrylamide) (PNIPAM) samples having similar degrees of polymerization and chain-ends. The thermoresponsive behavior of P(MEO2MA-co-OEGMA) was found to be overall comparable, and in some cases, superior to PNIPAM. Hence, P(MEO2MA-co-OEGMA) copolymers can be considered as ideal structures, which combine both the properties of poly(ethylene glycol) and PNIPAM in a single macromolecule.