申请人:ROHM AND HAAS COMPANY
公开号:EP0414396A1
公开(公告)日:1991-02-27
Novel thiol-terminated hydroxyamides, and processes for their preparation and use are provided. These hydroxyamide compounds may be prepared by the reaction of a mercapto- functional alkyl ester, such as methylmercaptopropionate, with a molar excess of an alcohol-substituted amine, such as β-hydroxyalkyl amine. The thiol-terminated hydroxyamides are useful as polymerization chain transfer agents, particularly when it is desirable to form polymers or oligomers containing functional hydroxyamide end groups. By chain terminating such polymer or oligomers with reactive hydroxyamide end groups the polymer or oligomers with reactive hydroxyamide end groups the polymer or oligomers can be further reacted with acid-containing monomers or polymers to form block or graft copolymers.
本发明提供了新型硫醇封端羟酰胺及其制备和使用工艺。这些羟酰胺化合物可通过巯基官能烷基酯(如巯基丙酸甲酯)与摩尔过量的醇取代胺(如β-羟烷基胺)反应制备。硫醇端羟酰胺可用作聚合链转移剂,特别是当需要形成含有官能羟酰胺端基的聚合物或低聚物时。通过用活性羟基酰胺端基链端接这种聚合物或低聚物,这种聚合物或低聚物可以进一步与含酸单体或聚合物反应,形成嵌段或接枝共聚物。