Synthesis and properties of new thermosensitive polymer systems
Synthesis and properties of new thermosensitive polymer systems
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DOI：
10.1002/app.23683
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发表时间：
2007-05-15
影响因子：
3
通讯作者：
Stoll, Michael
中科院分区：
文献类型：
--
作者：
Bohrisch, Joerg;Hahn, Mathias;Stoll, Michael
研究了水溶剂混合物从聚合物凝胶颗粒中的受控热释放。以马来酸酐/聚乙二醇缩合物为交联大分子单体，通过溶液聚合和反相乳液聚合，合成了一种新型的丙烯酰胺类聚合物凝胶。然后，将交联聚苯乙烯外壳包覆以稳定这种新型的“微容器”。这一概念被证明对各种有机溶剂和水的混合物普遍有用。聚合物凝胶的浊点温度强烈地依赖于以下参数：有机助溶剂的类型和含量，聚酯部分的聚合度和成分，以及共聚单体的类型和含量。(c)2007 Wiley Periodicals，Inc.
The controlled thermal release of aqueous solvent mixtures from polymeric gel particles was investigated. A new type of a polymeric gel consisting of a maleic anhydride/poly(ethylene glycol) condensation product as a crosslinking macromonomer and acrylamides was synthesized by solution or inverse emulsion polymerization for the investigation. Afterward a shell of crosslinked polystyrene was coated to stabilize this new kind of "microcontainer" for the application. This concept was shown as generally useful for various mixtures of organic solvents and water. The cloud point temperature of the polymer gel strongly depended on the following parameters: the type and content of organic cosolvent, the degree of polymerization and constituents of the polyester moiety, and the type and content of the comonomers. (c) 2007 Wiley Periodicals, Inc.