Synthesis and self‐assembly of thermoresponsive block‐graft fluoropolymer as well as its tunable wettability surface

Abstract

Thermo-responsive block-graft fluoropolymer is synthesized and investigated the self-assembly morphology and the tunable wettability surface on cotton fabric by dipcoating into the micelles with different temperatures. Welldefined block-graft copolymer is prepared by click chemistry with poly(hexafluorobutyl methacrylate)-block-poly(glycidyl methacrylate) (PHFBMA-b-PGMA) and homopolymer poly(Nisopropylacrylate) with alkyne on main chain (Alkynyl-PNIPAM) to synthesize final block-graft polymer PHFBMA-b-(PGMA-g-PNIPAM). The thermo-responsive behaviors of block-graft polymer prove that the diameter for fluoropolymer micelle is about 50-70 nm with uniform sphere shape at room temperature and bigger and broader at 40 8C. The surface of cotton fabric proc-essed in micelle solution at room temperature is smooth and has good hydrophobic property, while it has the hydrophilic property dipped in high temperature micelle solution. This work may give valuable guidance for fabricating a facile strategy to establish controllable wettability surfaces on different substrates, which is a promising candidate for the coating materials and industrial fields. V C 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2016, 54, 992-1002

Facile preparation of multifunctional poly(amide‐imide)/polyaniline films: Combining self‐cleaning, self‐extinguishing, and conductive

“…Solid films with controllable surface wettability have been attracted considerable attention because of their advantages in various applications such as self‐cleaning materials, thermally responsive filters, nanoscale device . Surface wettability is mainly dependent on their chemical composition and geometrical microstructures .…”

Smart Surfaces with Tunable Wettability

“…Further increasing the temperature above 44° (LCST of PNIPAAm), the molecular arrangement of PNIPAAm chains would change, which would further collapse the polymer chains making the surface more hydrophobic with a contact angle of about 108.6 ± 2.1° (Figure 6-III) [32]. Meanwhile, various other investigations have dealt with the fabrication of tunable wettability surfaces based on the polymer brush coating on cotton fabrics [35,36].…”

“…Jiang et al fabricated thermoresponsive co-polymer, PHFBMA-b-(PGMA-g-PNIPAM), by controlled free radical polymerization, which was used to fabricate a tunable wettability cotton fabric by dip-coating it into the thermoresponsive micelle. Dried cotton fabric was smooth with high fluorine content and showed hydrophobic behavior at low temperatures while at high temperatures; the surface of the cotton fabric was rough with low fluorine content and showed good hydrophilic behavior [36]. In addition to thermoresponsive polymers, which have been used extensively to fabricate the thermoresponsive surfaces, thermoresponsive inorganic oxides can also be used to get reversible thermoresponsive wetting transition [37,38].…”

Dual‐responsive copolymer poly(2,2,3,4,4,4‐hexafluorobutyl methacrylate)‐block‐poly[2‐(dimethylamino)ethyl methacrylate] synthesized via photoATRP for surface with tunable wettability

“…The low surface energy of fluoropolymers can provide the surface with low‐adhesive, hydrophobic, and antifouling behaviors . Recently, our group and Pang's group explored a series of stimuli‐responsive fluorinated copolymers to further enrich the functionality of fluorinated polymers . In this work, block copolymers poly(2,2,3,4,4,4‐hexafluorobutyl methacrylate)‐block‐poly[2‐(dimethylamino) ethyl methacrylate] (PHFBMA‐b‐PDMAEMA) were synthesized via sequential photoATRP at room temperature.…”