Studies on the effects of the alkyl group on the surface segregation of poly(n-alkyl methacrylate) end-capped 2-perfluorooctylethyl methacrylate films

The role of the molecular weight of the adsorbed layer on a substrate in the suppressed dynamics of supported thin polystyrene films

“…PS end-capped with 2-perfluorooctylethyl methacrylate (FMA) units (PS 428 -ec-FMA 2 , PDI = 1.15) was prepared by atom-transfer radical polymerization (ATRP), as previously described. 29,30…”

Synthesis of sulfonyl fluorinated macro emulsifier for low surface energy emulsion polymerization application

“…The result and the single peak in GPC graphs (see Supporting Information Figure S2) prove that the terpolymer was successfully synthesized. Long perfluoroalkyl side chains of PFHEA monomers packed up and self‐assembled to form few ordered structures and second order spacing, reflecting in the diffraction peak at around 2θ = 17° and 6.5° of PFMB's XRD spectrogram in Figure (a). Considering that the synthesized copolymers were random, the crystallization interfered by side chains was uncompleted.…”

“…The synthesis of the macro emulsifier was easily operated and fluorine‐containing emulsifiers had better interaction with fluoromonomers to stable the highly fluorinated emulsions than conventional fluorine free surfactants. The addition of sulfonyl groups endowed the fluorinated macromolecules excellent hydrophilicity and reactivity, providing the possibility of eliminating the influence of hydrophilic additives at the following coating step. What's more, the hydrophilic group contents of synthesized macro emulsifiers were much lower than common small molecular emulsifiers.…”

Enhancement of icephobic properties based on UV-curable fluorosilicone copolymer films

“…A peak around 80°C, which was observed in S-17F, attributed to the melting of a crystalline structure formed by the perfluoroalkyl side groups. 17,19 In order to confirm the crystallization of the perfluoroalkyl side groups, the block copolymers and the films were further characterized by XRD. Fig.…”

“…It has been reported that the perfluoroalkyl groups can crystallize due to the side-chain interaction of the fluoroalkyl groups, which is important for stable surface properties. [17][18][19][20] Poly(dimethylsiloxane) (PDMS) has also been another widely employed as icephobic material due to its low glass transition temperature (T g , -123°C) and low surface energy as well. The discrepancy of rheological-mechanical properties between PDMS-based polymer and ice can minimize mechanical interlocking, and reduce ice adhesion strength.…”