Sequence of Hydrophobic and Hydrophilic Residues in Amphiphilic Polymer Coatings Affects Surface Structure and Marine Antifouling/Fouling Release Properties.

Amphiphilic polymers, specifically combinations of hydrophilic and hydrophobic residues, have been shown to be effective as antifouling materials against the algae and diatoms. Here we use the inherent sequence specificity of polypeptoids made by solid-phase synthesis to show that the sequence of hydrophilic (methoxy) and hydrophobic (fluorinated) moieties affects both antifouling and fouling release of . The platform used to test these sequences was a polystyrene--poly(ethylene oxide--allyl glycidyl ether) (PS--P(EO--AGE)) scaffold, where the polypeptoids are attached to the scaffold using thiol-ene click chemistry.

Nanorod engineering by reinforcing hexagonally self-assembled PS-b-P4VP(DDP) with PPE.

Nanorods consisting of a polystyrene core and a poly(4-vinylpyridine) shell produced the self-assembly route of comb-shaped supramolecules exhibit very poor mechanical properties. Adding a sufficient amount of poly(2,6-dimethyl-1,4-diphenyl oxide) introduces entanglements to the PS-core resulting in nanorods with much better properties, which can be used as templates for transition metal oxide tubes.