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Morphology, thermal properties and molecular dynamics of syndiotactic polystyrene (s-PS) nanocomposites with aligned graphene oxide and graphene nanosheets

Koutsoumpis, Stefanos; Klonos, Panagiotis; Raftopoulos, Konstantinos N.; Papadakis, Christine M.; Bikiaris, Dimitrios; Pissis, Polycarpos

 Customer publications

Morphology, thermal properties and molecular dynamics of syndiotactic polystyrene (s-PS) nanocomposites with aligned graphene oxide and graphene nanosheets

Koutsoumpis, Stefanos; Klonos, Panagiotis; Raftopoulos, Konstantinos N.; Papadakis, Christine M.; Bikiaris, Dimitrios; Pissis, Polycarpos

In this work we report morphological, calorimetric and dielectric results for polymer nanocomposites (PNCs) based on syndiotactic polystyrene (s-PS) filled with graphene oxide (GO) and graphene by employing melt-mixing. The preparation of the PNCs resulted in aligning of the filler in the polymer matrix as observed by SEM and Wide…
Elastic serum-albumin based hydrogels: mechanism of formation and application in cardiac tissue engineering

Amdursky, Nadav; M. Mazo, Manuel; R. Thomas, Michael; J. Humphrey, Eleanor; L. Puetzer, Jennifer; St-Pierre, Jean-Philippe; C. Skaalure, Stacey; M. Richardson, Robert; M. Terracciano, Cesare; M. Stevens, Molly

 Customer publications

Elastic serum-albumin based hydrogels: mechanism of formation and application in cardiac tissue engineering

Amdursky, Nadav; M. Mazo, Manuel; R. Thomas, Michael; J. Humphrey, Eleanor; L. Puetzer, Jennifer; St-Pierre, Jean-Philippe; C. Skaalure, Stacey; M. Richardson, Robert; M. Terracciano, Cesare; M. Stevens, Molly

Journal of Materials Chemistry B, 2018, vol 6, 35, pp. 5604-5612DOI:10.1039/C8TB01014EVisit the full articleBack to the overview
Hydrogen-Bonded Siloxane Liquid Crystals for Hybrid Nanomaterials

Nickmans, Koen; Jansma, Sjoerd O.; Hey, Daniela; Velpula, Gangamallaiah; Teyssandier, Joan; Feyter, Steven De; Schenning, Albert P. H. J.

 Customer publications

Hydrogen-Bonded Siloxane Liquid Crystals for Hybrid Nanomaterials

Nickmans, Koen; Jansma, Sjoerd O.; Hey, Daniela; Velpula, Gangamallaiah; Teyssandier, Joan; Feyter, Steven De; Schenning, Albert P. H. J.

The self-assembly of molecular inorganic/organic hybrid building blocks into ordered hierarchical nanomaterials with a tunable morphology is an enormous challenge. Here, we describe the synthesis and characterization of a novel liquid crystalline hydrogen-bonding hepta(dimethylsiloxane) azobenzene carboxylic acid dimer. This inorganic/organic hybrid dimer forms sub-5 nm lamellar features in the…
Ordered Nanostructures of Carbon Nanotube–Polymer Composites from Lyotropic Liquid Crystal Templating

Kasprzak, Christopher R.; Scherzinger, Evan T.; Sarkar, Amrita; Miao, Miranda; Porcincula, Dominique H.; Madriz, Alejandro M.; Pennewell, Zachary M.; Chau, Sophia S.; Fernando, Raymond; Stefik, Morgan; Zhang, Shanju

 Customer publications

Ordered Nanostructures of Carbon Nanotube–Polymer Composites from Lyotropic Liquid Crystal Templating

Kasprzak, Christopher R.; Scherzinger, Evan T.; Sarkar, Amrita; Miao, Miranda; Porcincula, Dominique H.; Madriz, Alejandro M.; Pennewell, Zachary M.; Chau, Sophia S.; Fernando, Raymond; Stefik, Morgan; Zhang, Shanju

A series of polymer nanocomposites containing single-walled carbon nanotubes (SWNTs) are prepared from polymerizable quaternary ammonium surfactants using photo-polymerization and investigated by means of polarized optical microscopy, small-angle X-ray scattering, and rheological measurements. The surfactant monomers with various alkyl chains of nonpolar tails form lyotropic liquid crystalline…
Long-Chain Hyperbranched Comb Block Copolymers: Synthesis, Microstructure, Rheology, and Thermal Behavior

López-Barrón, Carlos R.; Brant, Patrick; Shivokhin, Maksim; Lu, Jiemin; Kang, Shuhui; Throckmorton, Joseph A.; Mouton, Trent; Pham, Truyen; Savage, Rebecca C.

 Customer publications

Long-Chain Hyperbranched Comb Block Copolymers: Synthesis, Microstructure, Rheology, and Thermal Behavior

López-Barrón, Carlos R.; Brant, Patrick; Shivokhin, Maksim; Lu, Jiemin; Kang, Shuhui; Throckmorton, Joseph A.; Mouton, Trent; Pham, Truyen; Savage, Rebecca C.

A series of poly(ethylene-co-acrylic acid)-cb-atactic polypropylene (EAA-cb-aPP) comb block copolymers were synthesized by grafting aPP-OH macromonomers onto a commercial EAA copolymer made by the high-pressure free radical process. The starting EAA copolymer contains 11 wt % of EAA units and has a significant amount of long chain branches. Therefore, the…
Influence of electron beam irradiation on the morphology and mechanical properties of styrene/butadiene triblock copolymers

Khatiwada, Shankar P.; Gohs, Uwe; Janke, Andreas; Jehnichen, Dieter; Heinrich, Gert; Adhikari, Rameshwar

 Customer publications

Influence of electron beam irradiation on the morphology and mechanical properties of styrene/butadiene triblock copolymers

Khatiwada, Shankar P.; Gohs, Uwe; Janke, Andreas; Jehnichen, Dieter; Heinrich, Gert; Adhikari, Rameshwar

The crosslinking of a styrene/butadiene triblock copolymer via electron beam (EB) treatment and its influence on morphology and mechanical properties were studied. Different doses were applied to study the effect on the modification of polybutadiene segments of the triblock copolymers whereby the highly ordered hexagonal packed type of the morphology…
Impact of Molecular Architecture on Dynamics of Miktoarm Star Copolymers

Kinsey, Thomas; Mapesa, Emmanuel Urandu; Wang, Weiyu; Hong, Kunlun; Mays, Jimmy; Kilbey, S. Michael; Sangoro, Joshua

 Customer publications

Impact of Molecular Architecture on Dynamics of Miktoarm Star Copolymers

Kinsey, Thomas; Mapesa, Emmanuel Urandu; Wang, Weiyu; Hong, Kunlun; Mays, Jimmy; Kilbey, S. Michael; Sangoro, Joshua

Broadband dielectric spectroscopy (BDS) is used to probe the chain and segmental dynamics of A2B2 and AB2 miktoarm star copolymers based on polystyrene (PS, A block) and polyisoprene (PI, B block) that display lamellar morphologies as determined using small-angle X-ray scattering (SAXS). While no changes in the distribution of PI…
P-Type Low-Molecular-Weight Hydrogelators

Draper, Emily R.; Dietrich, Bart; Brasnett, Christopher; Sproules, Stephen; McDonald, Tom O.; Seddon, Annela M.; Adams, Dave J.

 Customer publications

P-Type Low-Molecular-Weight Hydrogelators

Draper, Emily R.; Dietrich, Bart; Brasnett, Christopher; Sproules, Stephen; McDonald, Tom O.; Seddon, Annela M.; Adams, Dave J.

As the use of low-molecular-weight gelators (LMWGs) as components in single and multicomponent systems for optoelectronic and solar cell applications increases, so does the need for more functional gelators. There are relatively few examples of p-type gelators that can be used in such systems. Here, the synthesis and characterization of…
Structure–Properties Relations for Polyamide 6, Part 1: Influence of the Thermal History during Compression Moulding on Deformation and Failure Kinetics

Parodi, Emanuele; Peters, Gerrit W. M.; Govaert, Leon E.

 Customer publications

Structure–Properties Relations for Polyamide 6, Part 1: Influence of the Thermal History during Compression Moulding on Deformation and Failure Kinetics

Parodi, Emanuele; Peters, Gerrit W. M.; Govaert, Leon E.

The deformation and failure kinetics of polyamide 6 samples prepared by several thermal histories were investigated by tests at different temperatures and relative humidities. PA6 samples were produced in quiescent condition and multiple cooling procedure. A characterization was performed to investigate the effect of the different thermal histories and the…
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