Hydrophilization by coating of silylated polyoxazoline using sol–gel process

Abstract

Hybrid films prepared from TEOS and polyoxazoline cross-linkers(Si-POx-Si) were coated on different substrates in order to modify their surface properties. The film cohesion and adhesion on substrates were expected through the hydrogen bonding of the polyoxazoline crosslinked network. Low molecular-weight α,-unsaturated polyoxazolines (DA-PMOx)s were synthesized by a one step cationic ring-opening polymerization (CROP) of 2-methyl-2-oxazoline (MOx) with a good control over the molecular weight. Based on double thiol-ene coupling (d-TEC), a postfunctionalization of end chains DA-PMOx gave in good yield polyoxazoline cross-linker (SiPOx-Si). Glass and various polymer substrates (PP, PEI, POM...) were spin coated by the organic-inorganic hybrid films through sol-gel process. AFM, SEM, visible reflectance spectroscopy and contact angle experiments allowed the full characterization of targeted surfaces and demonstrated the efficiency of the polyoxazoline coating.3

Photodimerization as an alternative to photocrosslinking of nanoparticles: proof of concept with amphiphilic linear polyoxazoline bearing coumarin unit

“…40 Graft copolymers were also synthesized from macromonomers 41 or by click reaction with pendant groups. 42 These successful syntheses were explained by the numerous possibilities of functionalization of POx using terminating agents 43 or initiators 44 as described in several recent reviews. 45 We can cite our recent work on the association of lipidic derivatives and vegetable oils to POx in order to elaborate amphiphilic LipoPOx.…”

Facile Generation of Heterotelechelic Poly(2‐Oxazoline)s Towards Accelerated Exploration of Poly(2‐Oxazoline)‐Based Nanomedicine

“…The authors have cited additional references within the Supporting Information. [83][84][85][86][87][88][89][90][91][92][93][94][95] Conflict of Interest J. F. R. V. G., S. A., S. U., and K. K. are listed as inventors on a patent that covers heterotelechelic pentafluorophenylfunctional poly(2-oxazoline)s, their derivatives, and their use in lipid-formulations.…”

One-pot synthesis of amphiphilic multiblock poly(2-oxazoline)s via para-fluoro-thiol click reactions

“…42 However, the undesired strong interaction between amide groups on POx backbone and Cu catalyst creates a real challenge in the purification of the final product. 45 Utilizing metal-free click reactions such as thiol-ene reaction 46 and Cu-free strain-promoted azide-alkyne cycloaddition (SPAAC) click reactions 47 to synthesize block copolymers have also been reported. Besides, studies on αand ω-terminal functionalized POxs usually led to synthesis of diblock copolymer or triblock copolymer due to low coupling efficiency of POxs, 17,22 while the selected polymer-polymer coupling reaction utilized in reports was mainly CuAAc click reaction 13,18 with some studies employed thiol-based click reactions to prepare star, grafted and block copolymer of POxs.…”