Results 51 to 60 of about 7,291 (227)

Recyclability of Polystyrene Bead Foams: Degradation Behavior over 10 Extrusion Cycles

Polymer Engineering &Science, EarlyView.
This study investigates the multi‐cycle recycling of expanded polystyrene bead foam blended with virgin material. Material degradation is monitored by MFI, GPC, and mechanical testing. The results demonstrate that long‐term recyclability is feasible without progressive property loss, and that secondary high‐shear steps such as extrusion and pelletizing
Christian Töpfer, Kristina Schüllner, Holger Ruckdäschel   +2 more
wiley   +1 more source

Nylon-6/rubber blends: 8. Influence of the molecular weight of the matrix on the impact behaviour [PDF]

, 1994
Blends of nylon-6 with polybutadiene were prepared with comparable morphology and different molecular weights of the matrix. These specimens were tested using the notched Izod impact test and the notched tensile impact test.
Dijkstra, K., Dijkstra, Krijn, Gaymans, R.J.   +2 more
core   +2 more sources

Robust β‐myrcene block copolymer elastomeric vitrimers

Polymer International, EarlyView.
Myrcene‐based vitrimeric elastomers were compared: statistical (poly(styrene‐stat‐myrcene‐stat‐AAEMA)] versus ‘hard–soft’ diblock (poly(styrene)‐block‐poly(myrcene‐co‐AAEMA)). The diblock's ability to anchor the glassy poly(styrene) blocks in a self‐assembled microstructure was effective – leading to four times higher tensile stress and ten times ...
Chong Yang Du, Farhad Asempour, Milan Marić   +2 more
wiley   +1 more source

Role of strain induced crystallization and oxidative crosslinking in fracture properties of rubbers [PDF]

, 2014
Tensile properties and crack propagation properties, especially critical strain energy release rate in mode I, GIC, have been used to investigate fracture properties of elastomers and their relationships with microstructure.
BROUDIN, Morgane, DAVIES, Peter, FAYOLLE, Bruno, LE GAC, Pierre Yves, ROUX, Gérard, VERDU, Jacques   +5 more
core   +5 more sources

Evaluation of polybutadiene rubbers using FTIR spectra

Brazilian Journal of Radiation Sciences, 2017
Radiation dosimetry for medical and industrial purposes has increasingly evolved over the last few decades with the introduction of various new detectors. Depending on the properties exhibited for radiation dosimetry, some detectors present their applications in a specific area. From a physics point of view, an ideal dosimeter should be able to measure
Lucas N Oliveira, Fernando Schimidt, Silvio Leão Vieira, Patricia de Lara Antonio, Linda Viola Ehlin Caldas   +4 more
openaire   +3 more sources

Olefin Polymerizations Oriented by Rational Designs of Group‐13 Compounds

The Chemical Record, EarlyView.
In coordination olefin polymerization chemistry, boron and aluminum compounds play important roles in both catalyst components and monomers. This personal account introduces our recent progress on the development of catalyst systems featured by the design of group‐13 counteranions, as well as the application of boronic acid‐crosslinked polyolefins to ...
Ryo Tanaka, Yu Zou
wiley   +1 more source

Improving the Thermal Aging Resistance of γ-Vulcanized Polybutadiene Rubber (BR)/Nature Rubber (NR) Blends with Sulfur Added

Advances in Materials Science and Engineering, 2021
In this paper, sulfur was added into polybutadiene rubber/nature rubber (BR/NR) blends for improving the resistance of thermal aging. BR/NR blends with sulfur were vulcanized by 60Co γ radiation with different irradiation doses. Afterwards, the specimens
Zongyuan Mao, Wenzhao Wang, Gang Mao
doaj   +1 more source

Synthesis and Evaluation of Novel Thermoplastic Elastomers via Anionic Polymerization of Bio‐Based α‐Methyl‐p‐Methylstyrene

Journal of Polymer Science, Volume 64, Issue 3, Page 743-751, 1 February 2026.
Bio‐based PAMMS‐PI‐PAMMS triblock copolymers prepared via sequential anionic polymerization display widely tunable tensile behavior. Variation of the block composition enables systematic control of strength and extensibility, offering a sustainable platform for thermoplastic elastomers. ABSTRACT In this study, we examined novel thermoplastic elastomers
Goki Hattori, Gaishi Murakami, Tomohiro Kubo, Kotaro Satoh   +3 more
wiley   +1 more source

Optimizing Epoxy Vitrimer Composites With Sustainable Cellulose Nanofibril Reinforcements: Enhancing Thermal Dimensional Stability While Preserving Dynamic Covalent Behavior

Polymer Composites, Volume 47, Issue 1, Page 164-175, 10 January 2026.
A vitrimer nanocomposite based on nanofibrillated cellulose was fabricated using controlled resin infiltration, without the need for any functionalization. It exhibited excellent thermal dimensional stability and recyclability, positioning it as a promising material for next‐generation, eco‐responsible composites and protective coating aligned with ...
Isis Castro‐Cabrera, Armand Fahs, Sophie Berlioz, Pascal Carriere   +3 more
wiley   +1 more source

Structural and Dynamic Origins of Payne Effect Reduction by Steric Stabilization in Silica Reinforced Poly(butadiene) Nanocomposites

Polymer Composites, Volume 47, Issue 1, Page 532-542, 10 January 2026.
Steric stabilisation of silica nanoparticles suppresses the Payne effect in poly(butadiene) nanocomposites and enables the thickness of the glassy layer to be quantified with QENS experiments. ABSTRACT Silica nanoparticles in polybutadiene nanocomposites cause significantly hindered polymer dynamics in the form of a glassy layer, which can extend more ...
James M. Hart, W. Douglas Carswell, Victoria García‐Sakai, Bernhard Frick, Stephen C. Boothroyd, Lian R. Hutchings, Nigel Clarke, Richard L. Thompson   +7 more
wiley   +1 more source