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公开(公告)号：US20090286927A1
公开(公告)日：2009-11-19
申请号：US12480221
申请日：2009-06-08
摘要： The present invention is directed to a process for preparing a hyperbranched polymer having a weight-average molar mass of at least 30,000, comprising coupling a first prepolymer having at least three functional end groups with a second prepolymer having at least two functional end groups by a dehydration condensation reaction between the end groups in the prepolymers. According to the present invention the number of arms and/or molar mass of the functionalized prepolymers can accurately be adjusted, thus affecting the properties of the resulting hyperbranched polymer in a desired way. Thus the polymer can be equipped e.g. with hydrophobic and hydrophilic parts. Also, the number of functional end groups, that optionally can be used for further chemical reactions, in the hyperbranched polymer can easily be adjusted to a desired level. The hyperbranched high molar mass polymer can be prepared in high yields without the use of organic solvents or linking compounds, which is advantageous from an environmental as well as an economical point of view.
摘要翻译： 本发明涉及一种制备重均摩尔质量至少为30,000的超支化聚合物的方法，包括将具有至少三个官能端基的第一预聚物与具有至少两个官能端基的第二预聚物偶联 预聚物中端基之间的脱水缩合反应。 根据本发明，可以精确地调节官能化预聚物的臂数和/或摩尔质量，从而以期望的方式影响所得超支化聚合物的性质。 因此，聚合物可以配备例如 具有疏水和亲水部分。 此外，可以将超支化聚合物中可任选地用于进一步化学反应的官能端基的数目容易地调整到所需的水平。 超支化的高摩尔质量聚合物可以以高产率制备而不使用有机溶剂或连接化合物，这从环境以及经济角度来看是有利的。
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公开(公告)号：US20080221265A1
公开(公告)日：2008-09-11
申请号：US10516055
申请日：2003-05-30
IPC分类号： C08G63/60
CPC分类号： C08G83/005 , C08G63/08
摘要： A process for preparing a hyperbranched polymer having a weight-average molar mass of at least 30,000, includes coupling a first prepolymer having at least three functional end groups with a second prepolymer having at least two functional end groups by a dehydration condensation reaction between the end groups in the prepolymers. The number of arms and/or molar mass of the functionalized prepolymers can accurately be adjusted, thus affecting the properties of the resulting hyperbranched polymer in a desired way. The polymer can be equipped e.g. with hydrophobic and hydrophilic parts. Also, the number of functional end groups, that optionally can be used for further chemical reactions, in the hyperbranched polymer can easily be adjusted to a desired level. The hyperbranched high molar mass polymer can be prepared in high yields without the use of organic solvents or linking compounds, which is advantageous from an environmental as well as an economical point of view.
摘要翻译： 一种制备重均摩尔质量至少为30,000的超支化聚合物的方法包括将具有至少三个官能端基的第一预聚物与具有至少两个官能端基的第二预聚物通过末端的脱水缩合反应 预聚物中的基团。 可以精确地调节官能化预聚物的臂数和/或摩尔质量，从而以期望的方式影响所得超支化聚合物的性质。 聚合物可以配备例如 具有疏水和亲水部分。 此外，可以将超支化聚合物中可任选地用于进一步化学反应的官能端基的数目容易地调整到所需的水平。 超支化的高摩尔质量聚合物可以以高产率制备而不使用有机溶剂或连接化合物，这从环境以及经济角度来看是有利的。
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