Mesomorphic Structure of Poly(styrene)-block-poly(4-vinylpyridine) with Oligo(ethylene oxide)sulfonic Acid Side Chains as a Model for Molecularly Reinforced Polymer Electrolyte

Abstract

Mesomorphic structure of poly(styrene)-block-poly(4-vinylpyridine) with oligo(ethylene oxide)sulfonic acid side chains as a model for molecularly reinforced polymer electrolyte Citation for published version (APA): Kosonen, H., Valkama, S., Hartikainen, J., Eerikainen, H., Torkkeli, M., Jokela, K., ... Eerikäinen, H. (2002). Mesomorphic structure of poly(styrene)-block-poly(4-vinylpyridine) with oligo(ethylene oxide)sulfonic acid side chains as a model for molecularly reinforced polymer electrolyte. Macromolecules, 35(27), ABSTRACT: We report self-organized polymer electrolytes based on poly(styrene)-block-poly(4-vinylpyridine) (PS-block-P4VP). Liquidlike ethylene oxide (EO) oligomers with sulfonic acid end groups are bonded to the P4VP block, leading to comb-shaped supramolecules with the PS-block-P4VP backbone. Lithium perchlorate (LiClO 4) has been added to the EO-rich domains. Small-and wide-angle X-ray scattering in combination with Fourier transformation infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), ac impedance, and dynamic mechanical spectroscopy (DMA) suggests alternating lamellae of reinforcing glassy PS domains and ionically conducting "nanochannels" consisting of poly(4-vinylpyridinium), oligomeric ethylene oxide sulfonates, and LiClO 4. The long period of the self-organization is ca. 300 Å. So far, the ionic conductivity levels remained relatively low, i.e., 10 -7 -10 -6 S/cm at room temperature and 10 -5 -10 -4 S/cm at 80°C. However, as self-organization of polymeric supramolecules allows combining glassy reinforcing domains and well-plasticized domains consisting of oligomers with high segmental motions, there may exist possibilities to tune feasible combination of electrical and mechanical properties.

Silver Particulate Films on Compatible Softened Polymer Composites

“…Similar trends were observed by the triblockpolymers PS-P4VP-PS and P4VP-PS-P4VP, which were synthesized by chain transfer agent [33]. In case of PS-block-P4VP, the stretching bands overlap [14].The silver particulate film deposited on PS/P4VP (50:50) resulted in desired structure underlying the property of PS and P4VP [34]. Figure 7 shows no shift in the frequency leads to the absence of hydrogen bond.…”

“…A compatible blend provides a firm basis for further application in devices. Earlier researchers [10][11][12][13][14] have suggested the improvement of miscibility of PS with P4VP by incorporating proton donors like poly (acrylic) acid and poly (p-vinyl phenol) or methacrylic acid into the chains of PS with P4VP in order to utilise its proton acceptor nature. Further, reversible addition-fragmentation chain transfer polymerization was developed by J.J. Yuan and et al [9] for the controlled preparation of PS/P4VP triblock copolymers as PS-b-P4VP-b-PS and P4VP-b-PS-b-P4VP.In order to retain the properties of both the polymers PS and P4VP, blending is carried out through solution casting and it is expected that combination of PS and P4VP should give rise to organised subsurface silver particulate structures with the advantages of both the polymers.…”

“…Figure 7 shows no shift in the frequency leads to the absence of hydrogen bond. Thus, the possibility of protonation of nitrogen of P4VP [14] is ruled out but some intermolecular interaction at higher temperature leads to single Tg composition. Figs.…”

Self-assembly and flow alignment of protonically conducting complexes of polystyrene--poly(4-vinylpyridine) diblock copolymer with phosphoric acid

“…Sulfonated block copolymers consisting of polystyrene and polyolefine blocks have been studied in the context of fuel cell membranes [39][40][41][42]. An example related to smart materials is polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) where the latter block has been complexed with various sulfonic acids to render acid-base salt blocks where optionally amphiphilic alkyl phenols have been hydrogen bonded [23,24,[43][44][45]. Hierarchical self-assembled nanostructures are obtained and the order-order and orderdisorder phase transitions allow temperature driven switching of the protonic conductivity [23].…”

Functional Liquid-Crystalline Polymers for Ionic and Electronic Conduction

“…Supramolecular approaches [5,7,[20][21][22] are also effective for ion conduction in polymers. Ikkala and ten Brinke prepared the complex of polystyreneblock-poly(4-vinylpyridine) (PS-b-PVP) and oligo(ethylene oxide)sulfonic acid 11 [71,72]. The polymer self-assembles into lamellar nanostructures consisting of glassy hydrophobic polystyrene and hydrophilic PEO layers, as shown in Fig.…”