It has been discovered by in present invention that, compared with a fluorosurfactant having only one betaine group per molecule, a fluorosurfactant having a plurality of betaine groups per molecule is superior in its ability to undergo electrostatic interaction with other components of a fire fighting composition thereby improving the performance of the fire fighting composition. Previously known fluorosurfactants comprise only one betaine group per molecule. In contrast, the present invention provides for a fluorobetaine copolymer containing a plurality of betaine groups.
本发明发现,与每个分子只有一个
甜菜碱基团的含
氟表面活性剂相比,每个分子具有多个
甜菜碱基团的含
氟表面活性剂与灭火组合物的其他成分发生静电作用的能力更强,从而提高了灭火组合物的性能。以前已知的含
氟表面活性剂每个分子只有一个
甜菜碱基团。相比之下,本发明提供了一种含有多个
甜菜碱基团的
氟甜菜碱共聚物。