Blends of styrene-butadiene-styrene triblock copolymer and isotactic polypropylene: morphology and thermomechanical properties

Ferrer, Gloria Gallego; Salmerón-Sánchez, Manuel; Sánchez, E. Verdú; Colomer, F. Romero; Ribelles, J.L. Gómez

doi:10.1002/1097-0126(200008)49:8<853::aid-pi464>3.0.co;2-q

Cited by 25 publications

(18 citation statements)

References 23 publications

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“…Increasing the concentration of hard domains enhanced physical reinforcement and increased the corresponding Young's moduli and stress at break. These trending mechanical properties agree with previous literature studies involving conventional poly(S‐ b ‐I‐ b ‐S) thermoplastic elastomers …”

Section: Resultssupporting

confidence: 92%

“…The rubbery plateau extended for approximately 120 o C with a flow temperature above 100 o C, allowing a wide modulus‐invariant temperature range for the novel triblock copolymers. Previous literature on traditional poly(S‐ b ‐I‐ b ‐S) thermoplastic elastomers details comparable thermomechanical properties and operational temperature windows . The miscibility of styrenic components in poly(S‐ b ‐I‐ b ‐DPPS) triblock copolymers advantageously affords viscoelastic properties in agreement with conventional ABA‐type thermoplastic elastomers.…”

Section: Resultsmentioning

confidence: 68%

“…Previous literature on traditional poly(S-b-I-b-S) thermoplastic elastomers details comparable thermomechanical properties and operational temperature windows. 44,45 The miscibility of styrenic components in poly(S-b-I-b-DPPS) triblock copolymers advantageously affords viscoelastic properties in agreement with conventional ABA-type thermoplastic elastomers. However, post-alkylation or oxidation reactions with DPPS provide opportunities for extending these properties for emerging industrial applications.…”

Section: Tensile Stress (Mp )mentioning

confidence: 88%

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Living anionic polymerization of 4‐diphenylphosphino styrene for ABC triblock copolymers

et al. 2016

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Living anionic polymerization of 4-diphenylphosphino styrene (DPPS) achieved unprecedented poly(S-b-I-b-DPPS) ABC triblock copolymers with predictable molecular weights and narrow polydispersities. In situ Fourier transform infrared spectroscopy probed the anionic polymerization, monitoring vinyl disappearance during sequential monomer addition for kinetic analysis. Varying the concentration of reinforcing, polystyrenic external blocks enabled diverse compositions with tunable thermomechanical properties and tailored morphology. Dynamic mechanical analysis confirmed the presence of microphase separation in the triblock copolymers and revealed a broad temperature range (ca 100 o C) for a plateau region and onset of flow temperatures above 100 o C. Small-angle X-ray scattering and atomic force microscopy collectively revealed solid state morphologies of the triblock copolymers and probed phase separation at the nanoscale. Well-defined poly(S-b-I-b-DPPS) ABC triblock copolymers with tunable structure − property relationships now permit phosphorus-containing thermoplastic elastomers for emerging applications.

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Section: Resultssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 68%

Section: Tensile Stress (Mp )mentioning

confidence: 88%

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Living anionic polymerization of 4‐diphenylphosphino styrene for ABC triblock copolymers

et al. 2016

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“…Characteristics of the extruder and the mixing and shearing elements of the plasticizing unit are discussed in more detailed in other published work . Based on the results described in the literature , 50/50 wt% ratio of LDPE/elastomer was used. Moreover, in the studied case, a high content of PE in the LDPE/elastomer blends reduced the cost of production.…”

Section: Methodsmentioning

confidence: 99%

Interfacial adhesion evaluation in (low‐density polyethylene)/elastomer blends

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Piszczyk

Haponiuk

et al. 2015

Vinyl Additive Technology

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Low-density polyethylene (LDPE) with different elastomers at a ratio of 50/50 wt% blends was prepared by using a co-rotating twin-screw extruder. Three kinds of elastomers were used: ground tire rubber (GTR), partially crosslinked butyl rubber (Kalar V R ), and styrenebutadiene-rubber block copolymer (SBS; Kraton V R ). For better characterization of interaction between polyethylene and elastomer, influence of the type of elastomer on the properties of compositions LDPE/elastomer was determined. In the studies, two types of partially crosslinked butyl rubber (differing over filler content and Mooney viscosity) and two types of SBS (differing over structure: linear/branched) were used. The influence of kind and type of elastomer on static mechanical properties (tensile strength, elongation at break, hardness), dynamic mechanical properties, thermal properties, and morphology of obtained compositions were characterized. LDPE/linear SBS copolymer blend had the best mechanical properties, as a result of better compatibility in comparison with other investigated blends. The reason for improved compatibility was an increase of mobility of chain segments in the amorphous phase of polyethylene associated with their partial plasticization by flexible polybutadiene blocks present in SBS copolymer. J. VINYL ADDIT. TECHNOL.,

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“…It was studied for isotactic poly(propylene) (iPP) in blends with poly(ε-caprolactone) (PCL) [1,2], with ethylene / α-olefin copolymers [3,4], with cyclo-olefin polymers [5], with styrene-butadienestyrene (SBS) triblock amorphous copolymers [6], with polystyrene (PS) [7], with poly(ethylene oxide) (PEO) [8]. The phenomenon was also observed for polyamide 6 (PA6) in polyolefins [9].…”

Section: Introductionmentioning

confidence: 99%

Dispersed phase morphology and fractionated crystallization of high-density polyethylene in PET/HDPE blends

et al. 2008

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Blends of styrene-butadiene-styrene triblock copolymer and isotactic polypropylene: morphology and thermomechanical properties

Cited by 25 publications

References 23 publications

Living anionic polymerization of 4‐diphenylphosphino styrene for ABC triblock copolymers

Living anionic polymerization of 4‐diphenylphosphino styrene for ABC triblock copolymers

Interfacial adhesion evaluation in (low‐density polyethylene)/elastomer blends

Dispersed phase morphology and fractionated crystallization of high-density polyethylene in PET/HDPE blends

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