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This work studies the sustainable use of blockcopolymers (BCPs) in aims to reduce dependency in oil. This work focused on the design and development of new materials that can provide “green” substitutes to petroleum based products. Our two main areas of interest are: alternative power sources, more specifically polymer electrolyte fuel cells (PEFCs), and the synthesis of vegetable oil based thermoplastic elastomers. Research on PEFCs focused on developing a new cathode catalyst layer membrane comprised of a mesoporous block copolymeric nanocomposite that will satisfy (1) electrical conductivity, (2) proton conductivity, (3) oxygen transport in, (4) and water transport out via the self-assembly of BCPs. The proposed design is highly tunable in that many of the parameters (e.g., pore diameter, ionomer content) are independently adjustable. To attain this we made use of BCPs containing charged species, e.g., the sulfonic acid (SO3) group, giving the membrane the ability to possess ion exchange (proton conductivity) capabilities. Furthermore we examined the thermodynamic behavior of diblock copolymers representing the binary pairs of the ternary system: poly(dimethylsiloxane)/poly(ethylenestat-propylene)/poly(styrene-ran-styrene sulfonic acid), D/EP/SS in lieu of understanding the interaction an be able to predict a desired molecular architecture. SWNTs were noncovalently attached, using a phase inversion method, to the BCPs to serve for electron conductivity. Lastly SSEPD triblock copolymers were synthesized to locate their different molecular architecture along the triphase diagram. We employ small angle x-ray scattering, electron microscopy, and rheology to characterize the order-todisorder transition temperature TODT and lamellar period d of 28 materials with varying molecular weights and sulfonation extents. Research on thermoplastic elastomers focused on creating a replacement for the Styrene-ButadieneStyrene (SBS) petroleum based BCP with the use of vegetable oils, e.g., soybean oil (SBO). We present —for the first time— two distinct controlled radical polymerization techniques of a vegetable oil. To

Sustainability through blockcopolymers: novel ion exchange cathode membranes and soybean oil based thermoplastic elastomers