Perfluoropolyether containing lubricants with mixed end groups

摘要

Compounds of formula I:;
wherein X are independently —(CH2)b—, wherein b is 0 or an integer from 1 to 6; Rf are independently —CF2O(CF2CF2O)p(CF2)qCF2—, —CF2CF2O(CF2CF2CF2O)rCF2CF2—, or —CF2CF2CF2O(CF2CF2CF2CF2O)sCF2CF2CF2—, or derivatives thereof, wherein p, q, r and s are independently integers so that Mn of Rf is about 150 to 4500; and Z are independently chosen from groups that comprise —OH, —(OH)2, —COOCH3, —F, —CF3, or —CF2CF3, with the caveat that not all Z are the same.

主权项

1. A compound of formula I: wherein X are independently —(CH2)b—, wherein b is 0 or an integer from 1 to 6; Rf are independently —CF2O(CF2CF2O)p(CF2O)qCF2—, —CF2CF2O(CF2CF2CF2O)rCF2CF2—, or —CF2CF2CF2O(CF2CF2CF2CF2O)sCF2CF2CF2,
wherein p, q, r, and s are independently integers so that Mn of Rf is about 150 to 4500; and Z are independently chosen from:
—CH2OH, —CH2CH2OH, —CH2CH2CH2OH, —CH(OH)CH2OH, —CH2CH(OH)CH2OH, —CH2OCH2CH(OH)CH2OH, —CH2OCH(CH2OH)CH2OH, —CH2OCH2CH2OCH2CH2OH, —F, —CF3, —CF2CF3, —OCH2CH2OH, —CH(CH2OH)CH2OH, —C6H5, and piperonyl with the caveat that not all Z are the same.