Provided is a fluorinated polymer that can impart excellent washing durability and water- and oil-repellency to fibers, said fluorinated polymer having a repeating unit derived from a fluorinated monomer (a) that comprises a first fluorinated monomer (a1) represented by the formula: CH2=C(-X1)-C(=O)-Y1-Z1-Rf1 [wherein X1 represents a halogen atom; Y1 represents -O- or -NH-; Z1 represents a direct bond or a bivalent organic group; and Rf1 represents a fluoroalkyl group having 1 to 20 carbon atoms] and a second fluorinated monomer (a2) represented by the formula: CH2=C(-X2)-C(=O)-Y2-Z2-Rf2 [wherein X2 represents a monovalent organic group or a hydrogen atom; Y2 represents -O- or -NH-; Z2 represents a direct bond or a bivalent organic group; and Rf2 represents a fluoroalkyl group having 1 to 20 carbon atoms].
本发明提供了一种可赋予纤维优异的洗涤耐久性和憎
水憎油性的含
氟聚合物,所述含
氟聚合物具有从含
氟单体(a)衍生的重复单元,所述含
氟单体(a)包括由式表示的第一含
氟单体(a1):
CH2=C(-X1)-C(=O)-Y1-Z1-Rf1[其中 X1 代表卤素原子;Y1 代表-O-或-NH-;Z1 代表直接键或二价有机基团;Rf1 代表具有 1 至 20 个碳原子的氟烷基]和由式表示的第二
氟化单体 (a2) 组成: =C(-X2)-C(=O)-Y2-Z2-Rf2 [其中 X2 代表一价有机基团或氢原子;Y2 代表-O-或-NH-;Z2 代表直接键或二价有机基团;Rf2 代表具有 1 至 20 个碳原子的氟烷基]。