When synthetic materials are submerged in marine environments, dissolved matter and organisms attach to their surfaces by a process known as fouling. This phenomenon may lead diminished material performance with detrimental consequences. Bioinspired surface patterning chemical modifications present promising approaches the design of novel functional that can prevent biofouling phenomena. In this study, we report synergistic effects patterns, inspired decapod crab Myomenippe hardwickii...

The successful implementation of zwitterionic polymeric brushes as antifouling materials for marine applications is conditioned by the stability polymer chain and brush-anchoring segment in seawater. Here we demonstrate that robust, antifouling, hydrophilic polysulfobetaine-based with diblock architecture can be fabricated atom-transfer radical polymerization (ATRP) using initiator-modified surfaces. Sequential living-type hydrophobic styrene or methyl methacrylate commercially available...

Phloretic acid: a sustainable building block to promote the solvent-free elaboration of benzoxazine and its polymerization into fully bio-based thermosets.

Abstract Three series of terephthalate polyesters (copolyesters and terpolyesters) containing 70, 80, 90 mol % ethylene glycol respectively, 1,4‐cyclohexanedimethanol (CHDM) isosorbide in varying ratios, were synthesized by melt polycondensation. It was found that only ∼75 the feeding incorporated resulting their content diethylene oscillated between 2 4 %. The had weight‐average molecular weights 25,000–33,000 g −1 range polydispersities 2.5. combined 1 H 13 C NMR analysis revealed...

Cellulose esters, where thermoplastic cellulose acetate is the most industrially relevant derivative, have become highly significant as biodegradable materials issued from renewable bio-feedstock. This contribution highlights some of main achievements in blending and functionalization through (reactive) melt processing with a view to produce environmentally friendly products. Biodegradation aspects these cellulosic derivatives are also raised.

The exceptional hydration of sulfobetaine polymer brushes and their resistance toward nonspecific protein absorption allows for the construction thin films with excellent antibiofouling properties. In this work, swollen brushes, prepared by surface-initiated atom transfer radical polymerization two monomers, differentiated nature polymerizable group, are studied compared a liquid-cell atomic force microscopy technique spectroscopic ellipsometry. Colloidal AFM-based spectroscopy is employed...

Cellulose acetate (CA) with a degree of substitution (DS) 2.5 and polylactic acid (PLLA) were plasticized by melt extrusion using triacetin. Blends resulting thermoplastic materials then prepared characterized their tensile strength differential scanning calorimetry (DSC). Thermal analysis revealed the invariability PLLA glass transition temperature in all blends, indicating that compounds immiscible. Grafted d/l lactide to CA copolymers reactive processing different i.e. 2.1 evaluated as...

The melt blending of poly( l ‐lactide) ( PLLA ) with biodegradable poly(butylene succinate) PBS is considered a view to fine‐tuning its mechanical properties and degradability. For this purpose, both maleic‐anhydride‐grafted ‐ g MA were prepared used as reactive compatibilizers. influence viscosity on the morphology / blends was studied. Interestingly, low allows be toughened while use high led exhibiting co‐continuous morphology. nanostructure may tuned through joint action organo‐modified...

Abstract Bioconjugation of enzymes on coatings based polydopamine (PDA) layers is an appealing approach to control biological responses biomedical implant surfaces. As alternative PDA wet deposition, a fast, solvent‐free, and dynamic deposition atmospheric‐pressure plasma dielectric barrier discharge process considered deposit metallic surfaces acrylic‐based interlayers containing highly chemically reactive catechol/quinone groups. A biomimetic covalent immobilization Dispersin B, enzyme...

Abstract Despite the considerable significance of utilizing ultra‐thin film (utf) hydrogels as multipurpose platforms for biomedical applications, there is still an important lack adequate characterization techniques suitable such materials. In this Perspective, use quartz crystal microbalance with dissipation (QCM‐D) coupled spectral ellipsometry (SE) presented a potential tool complete utf‐hydrogels due to its nanometric sensitivity and high versatility. Herein, fundaments utf‐hydrogel are...

A series of poly(ethylene terephthalate) terpolyesters containing varying amounts both 1,4-cyclohexylenedimethylene and isosorbide units were prepared by melt phase polycondensation. These terpolymers obtained with high molecular weights polydispersities around 2.0–2.5. The nuclear magnetic resonance data revealed that they all random small lost during the polycondensation reaction. Thermal showed 90 mol% ethylene crystalline, whereas two other 80 70 unable to crystallize from melt. For...

Abstract Hydrophobic coatings based on dodecyl acrylate (DOCA) and perfluorodecyl (PFDA) have been generated via “postdischarge” atmospheric pressure plasma deposition. These exhibit a water contact angle (WCA) of around 125° but are accompanied by poor mechanical strength. To improve this property, two different types chemical crosslinkers, that is, hexanediol methacrylate (HDMA) diacrylate (HDA), incorporated into the precursor mixture. After polymerization, both with crosslinkers...

Immiscible elastomeric blends are of interest for a variety technical applications, in which the optimization material properties and performance influenced by result co-vulcanization. The differential solubility curing additives used during vulcanization process, such as sulfur or accelerators, can lead to different concentrations rates each elastomer depending on their composition. Therefore, comprehension phase-specific effects curatives blend is desirable. In this work, two atomic force...

Abstract Transparent thin‐film piezoelectric transducers are attractive for haptic displays. However, their widespread use in consumer electronics, innovative and cost‐effective processing methods need to be developed. In this contribution the effectiveness of deposition lead zirconate titanate thin films by inkjet printing fabrication devices is demonstrated. The 1,3‐propanediol solvent used prepare effective inkjet‐printing inks from chemical solution solutions. printed structures on fused...

ABSTRACT Promoting both high functional group preservation and deposition rates is a major challenge in plasma deposition. This study explores dynamic method using nanosecond pulsed discharges to polymerize thin liquid layers of 2‐hydroxyethyl methacrylate (HEMA). The influence pulse frequency (200 ns) layer thickness on chemical structure retention, polymeric growth, film growth rate examined. High‐resolution mass spectrometry (HRMS) highlights that curing monomer achieves significantly...

Abstract A series of poly(ethylene terephthalate‐ co ‐isophthalate) copolyesters containing upto 50%‐mole isophthalic units were prepared by polycondensation from ethylene terephthalate and isophthalate fractions linear oligomers 5 to 6 repeating in average. The polyesters obtained good yields with high‐molecular‐weights. microstructure the was studied as a function reaction time 13 C‐NMR showing that random distribution comonomers achieved since earlier stages polycondensation. melting...

Immiscible blends of elastomers present high technological interest, and the selection vulcanization system is important for optimization properties different technical applications. In particular, effect curing agents on distribution cross-links in each phase key full comprehension structure–property relationships. Aiming at understanding phase-specific network structure rubber blends, this work presents an innovative strategy quantitative characterization local viscoelastic immiscible by...

The co-vulcanization of immiscible blends composed two or more chemically different elastomers can lead to the formation materials with uneven distribution cross-links and cross-linked structures. This is consequence competition between vulcanization processes occurring in each phase. solubility preferences agents rates they be consumed phase are main factors governing phase-specific properties these cured materials. To track localization curatives elastomeric polyisoprene (PI) polybutadiene...