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公开(公告)号:US20140045699A1
公开(公告)日:2014-02-13
申请号:US14113267
申请日:2012-04-25
IPC分类号: C08K3/22
CPC分类号: C08K3/22 , C08F220/56 , C09D7/65 , C09D11/10 , C09D11/106 , C09D11/30
摘要: A stimulus-responsive formulation of stimulus-responsive polymer particles in aqueous composition has a rheology-stimulus profile (e.g. rheology-temperature) whereby it exhibits certain rheological behaviours over a range of temperatures, which is controllable by copolymerising a stimulus-responsive polymer-forming monomer, such as N-isopropylacrylamide, with a certain proportion of second monomer having weak acid functionality (such as acrylic acid) to form the stimulus-responsive microgel particles of the formulation and by addition of a base to the formulation to neutralise a portion but not all of the weak acid functionality. Thus a stimulus-responsive formulation may be controlled to exhibit gel-to-liquid-to-gel like behaviour with increasing temperature.
摘要翻译: 在水性组合物中刺激响应性聚合物颗粒的刺激反应性制剂具有流变学刺激分布(例如流变学温度),由此其在一定温度范围内表现出一定的流变行为,其可通过共聚刺激响应性聚合物形成 单体,例如N-异丙基丙烯酰胺,具有一定比例的具有弱酸官能度的第二单体(例如丙烯酸)以形成制剂的刺激响应性微凝胶颗粒,并通过向制剂中加入碱以中和部分,但是 不是所有的弱酸功能。 因此,可以控制刺激响应性制剂以随着温度的升高呈现出凝胶 - 液体 - 凝胶的行为。