Tin‐coupled star‐shaped block copolymer of styrene and butadiene (II) properties and application

Feng, Huadong; Zhang, Xingying; Zhao, Shuang

doi:10.1002/app.28867

Cited by 10 publications

(3 citation statements)

References 12 publications

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“…Figure (b) shows that the G ″ values of various CB‐filled CR compounds exhibit a small peak at a strain amplitude around 0.5%, and then the G ″ values decrease rapidly with further increase in strain amplitudes. The value of G ″ is dominated by the energy loss during dynamic strain, it is controlled by the breakdown and reformation of the filler network . The CB‐filled CR/NO compound exhibits a higher G ″ value than other compounds at low strain amplitudes, indicating a more developed filler network breaking down and reforming during the dynamic strain.…”

Section: Resultsmentioning

confidence: 99%

Effect of norbornyl modified soybean oil on CB‐filled chloroprene rubber

Isayev

Xue-ping

et al. 2016

J of Applied Polymer Sci

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Carbon black (CB)‐filled chloroprene rubber (CR) compounds and vulcanizates containing naphthenic oil (NO), soybean oil (SO), and two different levels of norbornyl modified soybean oil (MSO) were prepared and investigated. The MSO was prepared through the reaction of SO and dicyclopentadiene (DCPD) at different ratios. Various properties including gel fraction, crosslink density, bound rubber fraction, curing behavior, thermal, mechanical, and aging properties of CB‐filled CR containing different oils were compared. It was observed that the addition of SO and MSO could benefit the dispersion of the filler, lower the glass transition temperature, and increase the thermal stability of the CB‐filled CR/MSO compounds and vulcanizates, and also slightly decrease the crosslink density of the CB‐filled CR/MSO vulcanizates compared to that of the CR/NO vulcanizate. With the increase of the modification level of the MSO, the curing time of the CB‐filled CR/MSO compounds was found to be decreased, the tensile property, tear strength, abrasion resistance, and aging resistance of the CB‐filled CR/MSO vulcanizates were improved compared with those of the CB‐filled CR/NO vulcanizate. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43809.

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Section: Resultsmentioning

confidence: 99%

Effect of norbornyl modified soybean oil on CB‐filled chloroprene rubber

Isayev

Xue-ping

et al. 2016

J of Applied Polymer Sci

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“…Compounding elastomers or generally polymers with fillers is a way to improve their conductivities. Several research studies used metallic nanoparticles [1, 2], carbon nanotubes [3-6], and carbon black [7] to enhance the mechanical properties combined with conductivities of polymers. Recently, graphene and its derivatives have been extensively paid attention because it is the stiffest and strongest material to-date combined with good ductility (elongates to 25% of its original length), and possesses higher electrical and thermal conductivities more than copper [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

A facile approach to fabricate elastomer/graphene platelets nanocomposites

Araby

Maged

Zaman

et al. 2013

Fourth International Conference on Smart Materials and Nanotechnology in Engineering

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Graphene platelets (GnP) are new class of fillers in nanosize with high aspect ratio, high absolute strength with good compatibility to reinforce most polymers. In this study, we produce GnPs with a scalable and cost effective method using thermal shock followed by ultrasonication. AFM analysis shows that our GnPs consists of 3 -4 layers since it has a thickness of 3.55 ± 0.32 nm. Thermally and electrically conductive elastomer/GnPs nanocomposites have been developed using melt compounding technique. The fabricated nanocomposites show high mechanical performance combined with good functional properties. At 24 vol% of GnP, tensile strength, Young's modulus, and tear strength improved by 230%, 506% and 445%, respectively with an increase of thermal conductivity by 240%. The percolation threshold of electrical conductivity was reported at 16.5 vol%.

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“…Yan et al has used n ‐butyl lithium and SnCl 4 as initiator of anionic polymerization and coupling agent respectively to obtain star‐shaped styrene–isoprene–butadiene random copolymer. Feng et al has investigated a novel tin‐coupled star‐shaped block copolymer (S‐PB–PSB) by using anionic polymeric techniques. In short, different sequence and combination mode of the three kinds of monomer could prepare different integral rubber with good mechanical property, high antiskid properties and low rolling resistance.…”

Section: Introductionmentioning

confidence: 99%

Preparation, structure, and properties of end‐functionalized miktoarms star‐shaped polybutadiene–sn–poly(styrene–butadiene) rubber

Zhang

Zhao

Zhang³

et al. 2013

J of Applied Polymer Sci

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Two miktoarm star-shaped rubbers with large-volume functional groups of 1,1-diphenylhexyl at the ends of arms (DMS-PB-SBR) and one miktoarm star-shaped rubber with n-butyl groups at the ends of arms (BMS-PB-SBR) were prepared by 1,1-diphenylhexyllithium (DPHLi) and n-butyl lithium as initiators, respectively. The molecular structures and morphological properties of the three rubbers (MS-PB-SBR) were studied and compared with those acquired from the blend consisting of star-shaped solution-polymerized butadiene styrene rubber (S-SSBR) and butadiene rubber (PBR) prepared by ourselves. The results showed that MS-PB-SBR exhibited a more uniform distribution of PBR phase and a smaller phase size of PBR than that of S-SSBR/PBR blend. It is found that MS-PB-SBR composites filled with CB showed the lower Payne effect than that of S-SSBR/PBR/CB composite, suggesting that the MS-PB-SBR/CB composite (particularly the DMS-PB-SBR/CB composites) would possess excellent mechanical properties, high wetskid resistance, and low rolling resistance. For the studied MS-PB-SBR systems, the contribution of large-volume functional groups at the end of PBR molecular chains to decrease the rolling resistance was larger than that of Sn coupling effect. It is envisioned that the miktoarm star-shaped rubbers with 1,1-diphenylhexyl groups at the molecular ends would be useful for making treads of green tires.

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Tin‐coupled star‐shaped block copolymer of styrene and butadiene (II) properties and application

Cited by 10 publications

References 12 publications

Effect of norbornyl modified soybean oil on CB‐filled chloroprene rubber

Effect of norbornyl modified soybean oil on CB‐filled chloroprene rubber

A facile approach to fabricate elastomer/graphene platelets nanocomposites

Preparation, structure, and properties of end‐functionalized miktoarms star‐shaped polybutadiene–sn–poly(styrene–butadiene) rubber

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