Electrospun styrene–butadiene–styrene elastomer copolymers for tissue engineering applications: Effect of butadiene/styrene ratio, block structure, hydrogenation and carbon nanotube loading on physical properties and cytotoxicity

Different copolymers of styrene–butadiene–styrene (SBS) and hydrogenated SBS, styrene–ethylene/butylene–styrene (SEBS) were processed by electrospinning with micrometers fiber diameters. The effect of butadiene/styrene ratio, linear or radial block structure, hydrogenation, and carbon nanotube (CNT)...

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Bibliographic Details
Published in:Composites. Part B, Engineering Engineering, 2014-12, Vol.67, p.30-38
Main Authors: Ribeiro, S., Costa, P., Ribeiro, C., Sencadas, V., Botelho, G., Lanceros-Méndez, S.
Format: Article
Language:English
Subjects:
A. Polymer–matrix composites (PMCs)
Applied sciences
B. Elasticity
B. Mechanical properties
Biological and medical sciences
Butadiene
Carbon nanotubes
Composites
Copolymers
D. Mechanical testing
Electrospinning
Exact sciences and technology
Fibers and threads
Forms of application and semi-finished materials
Hydrogenation
Hysteresis
Mechanical hysteresis
Medical sciences
Polymer industry, paints, wood
Styrenes
Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases
Technology of polymers
Technology. Biomaterials. Equipments
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Summary:Different copolymers of styrene–butadiene–styrene (SBS) and hydrogenated SBS, styrene–ethylene/butylene–styrene (SEBS) were processed by electrospinning with micrometers fiber diameters. The effect of butadiene/styrene ratio, linear or radial block structure, hydrogenation, and carbon nanotube (CNT) loading on the overall material properties is reported. SEBS has higher initial modulus and mechanical hysteresis when compared to SBS. The mechanical hysteresis decreases with the number of applied cycles. The inclusion of CNTs increases the nanocomposites mechanical hysteresis and electrical conductivity independently on the copolymer matrix. The amount of styrene monomer within the samples is within the range allowed for food packaging applications. Finally, SBS and SEBS pristine samples and SEBS composites do not show cytotoxicity.
ISSN:1359-8368
1879-1069
DOI:10.1016/j.compositesb.2014.06.025