Synthesis and surface properties of amphiphilic fluorine-containing diblock copolymers

Chekurov Kirill E.; Barabanova Anna I.; Blagodatskikh Inesa V.; Lokshin Boris V.; Kondratenko Mikhail S.; Gallyamov Marat O.; Peregudov Alexander S.; Khokhlov Alexei R.

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Synthesis and surface properties of amphiphilic fluorine-containing diblock copolymers

机译：含两亲氟二嵌段共聚物的合成和表面性质

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Amphiphilic diblock copolymers (DCs) of 2,3,4,5,6-pentafluorostyrene (PFS) and 2-hydroxyethyl methacrylate (HEMA) of different composition and molecular weights were prepared by two-step reversible addition-fragmentation chain transfer (RAFT) polymerization and first used for preparation of superhydrophobic coatings for cotton/polyester fabrics. The transition from hydrophobic to superhydrophobic coatings is controlled by the ratio between poly(2,3,4,5,6-pentafluorostyrene) (PPFS) block and poly(2-hydroxyethyl methacrylate) (PHEMA) block lengths (P-n(PFS)/P-n(HEMA)). The increase inP(n)(PFS)/P(n)(HEMA)is accompanied by a significant increase in water (theta(H)(O)(2)) and diiodomethane (theta(CH)(I)(2)(2)) contact angles, which reach the plateau atP(n)(PFS)/P-n(HEMA)= 3.5 and remains almost constant up toP(n)(PFS)/P-n(HEMA)= 6.2. Surface modification of the cotton/polyester fabric with the DC havingP(n)(PFS)/P-n(HEMA)= 6.2 produced superhydrophobic surface with theta(H)(O)(2)= 158 +/- 4 degrees and contact angle hysteresis CAH = 5 +/- 2 degrees, and theta(CH)(I)(2)(2)= 107 +/- 3 degrees.

机译：采用两步可逆加成-断裂链转移（RAFT）聚合法制备了不同组成和分子量的2,3,4,5,6-五氟苯乙烯（PFS）和2-甲基丙烯酸羟乙酯（HEMA）两亲性二嵌段共聚物（DC），并首次用于制备棉/聚酯织物超疏水涂料。从疏水涂层到超疏水涂层的转变由聚（2,3,4,5,6-五氟苯乙烯）（PPFS）嵌段和聚（2-甲基丙烯酸羟乙基乙酯）（PHEMA）嵌段长度（P-n（PFS）/P-n（HEMA）之间的比率控制。inP（n）（PFS）/P（n）（HEMA）的增加伴随着水（θ（H）（O）（2））和二碘甲烷（θ（CH）（I）（2）（2））接触角的显著增加，其达到平台atP（n）（PFS）/P-n（HEMA）=3.5，并且在顶部（n）（PFS）/P-n（HEMA）=6.2时几乎保持不变。用P（n）（PFS）/P-n（HEMA）=6.2的DC对棉/涤纶织物进行表面改性，产生超疏水表面，θ（H）（O）（2）=158+/-4度，接触角滞后CAH=5+/-2度，θ（CH）（I）（2）（2）=107+/-3度。

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《Journal of Applied Polymer Science》 |2021年第4期|共12页
作者
Chekurov Kirill E.; Barabanova Anna I.; Blagodatskikh Inesa V.; Lokshin Boris V.; Kondratenko Mikhail S.; Gallyamov Marat O.; Peregudov Alexander S.; Khokhlov Alexei R.;
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Russian Acad Sci AN Nesmeyanov Inst Organoelement Cpds Moscow 119991 Russia;

Russian Acad Sci AN Nesmeyanov Inst Organoelement Cpds Moscow 119991 Russia;

Russian Acad Sci AN Nesmeyanov Inst Organoelement Cpds Moscow 119991 Russia;

Russian Acad Sci AN Nesmeyanov Inst Organoelement Cpds Moscow 119991 Russia;

Moscow MV Lomonosov State Univ Phys Dept Moscow Russia;

Russian Acad Sci AN Nesmeyanov Inst Organoelement Cpds Moscow 119991 Russia;

Russian Acad Sci AN Nesmeyanov Inst Organoelement Cpds Moscow 119991 Russia;

Russian Acad Sci AN Nesmeyanov Inst Organoelement Cpds Moscow 119991 Russia;

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中图分类高分子化合物工业（高聚物工业）;
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Synthesis and surface properties of amphiphilic fluorine-containing diblock copolymers

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