Tin‐coupled styrene‐butadiene rubbers (SBRs). Relationship between coupling type and properties

Quiteria, Valentín Ruiz‐Santa; Sierra, C. A.; Gómez‐Fatou, Jose M.; Galan, M. Carmen; Fraga, L.M.

doi:10.1002/apmc.1997.052460107

Cited by 9 publications

(9 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Tin coupled SBR (SBR-Sn) was synthesized by the reaction of poly(styrene-butadiene)anion with SnCl 4 . 8 …”

Section: Methodsmentioning

confidence: 99%

“…8,16 The SBR-1/silica composite shows lower tan δ at 60 • C by about 11% than SBR-Sn or SBR-2. Tan δ at 0 • C for SBR-1/silica composite increased more than 160% as compared to that for SBR-Sn/Silica composite.…”

Section: Dynamic Mechanical Properties Of Sbr Silica Hybrid Materialsmentioning

confidence: 95%

“…The terminators are 4-vinylbenzyl chloride, dihaloalkanes, halopropylstyrene, chlorosilane, alkyl chlorides bearing heteroatoms, carbon dioxide, ethylene oxide, poly(ethylene oxide) (PEO), tin (or silicon) tetrachloride, etc. [3][4][5][6][7][8] Such endfunctionalization could be utilized to improve reactivity, hydrophilicity, solubility, and miscibility of the polymers.…”

mentioning

confidence: 99%

“…7,8 Interactions of tin coupled styrene-butadiene rubbers (SBR-Sn) are of particular interest in compounds incorporating carbon blacks, showing lower hysteresis than uncoupled SBR. Interactions of polymer with inorganic fillers seem important through the presence of hydrogen bonding or tin-carbon bonding.…”

mentioning

confidence: 99%

See 3 more Smart Citations

End Functionalization of Styrene–Butadiene Rubber with Poly(ethylene glycol)–poly(dimethylsiloxane) Terminator

Kim

Lee

Park

et al. 2002

Polym J

View full text Add to dashboard Cite

ABSTRACT:A polar polydimethylsiloxane terminator was prepared and reacted with living copolymer anion of styrene and butadiene, to synthesize end-functionalized styrene-butadiene rubber (SBR). As a polar functional terminator, poly(ethylene glycol)-poly(dimethylsiloxane) block copolymer (PEG-PDMS) containing a chlorosilyl moiety at one chain end (1) was synthesized by two-step hydrosilylation. End capping of poly(styrene-butadiene) living anion with PEG-PDMS terminator (1) afforded polymers with polar poly(dimethylsiloxane) end groups. PEG-PDMS terminated SBR, SBR-1, showed higher interaction with silica particles by microscophy and chromatography. Dynamic-mechanical analysis on silica composites of SBR-1 strongly supports the assumption that the PEG-PDMS end groups behave as polar functional groups, showing increase of the glass transition temperature (T g ) and storage modulus in the composite of SBR-1 with silica particles. The SBR-1/silica composite showed lower tan δ at 60• C and higher tan δ at 0 • C as compared to SBR-Sn/silica composite.

show abstract

“…Tin coupled SBR (SBR-Sn) was synthesized by the reaction of poly(styrene-butadiene)anion with SnCl 4 . 8 …”

Section: Methodsmentioning

confidence: 99%

Section: Dynamic Mechanical Properties Of Sbr Silica Hybrid Materialsmentioning

confidence: 95%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

End Functionalization of Styrene–Butadiene Rubber with Poly(ethylene glycol)–poly(dimethylsiloxane) Terminator

Kim

Lee

Park

et al. 2002

Polym J

View full text Add to dashboard Cite

show abstract

“…Therefore the reduction of the hysteresis can not be explained by the formation of bound rubber. During tin chain termination, branched polymer structures can be created, which also can have a higher physical interaction with carbon black 85,86,88 .…”

Section: Chain-end Functionalisationmentioning

confidence: 99%

Silica-silane reinforced passenger car tire treads : effect of silica morphology, silica-polymer interface structure and rubber matrix network on tire-performance indicators

Cichomski¹

View full text Add to dashboard Cite

With references -With summary in English and Dutch.Copy right © Ernest Cichomski, 2015.All right reserved. Cover design by Ernest CichomskiPrinted by Print Partners Ipskamp, P.O. Box 333, 7500 AH Enschede, the Netherlands. Researchers at I. G. Farben, a German conglomerate that included Bayer, focused on the sodium polymerization of the monomer butadiene to produce a synthetic rubber called "Buna" ("bu" for butadiene and "na" for natrium, the chemical symbol for sodium). SILICA-SILANE REINFORCED PASSENGER CAR TIRE TREADS 2The brake-trough came with the discovery in 1929 that Buna S (butadiene and styrene randomly co-polymerized in emulsion), when compounded with carbon black, was significantly more durable than natural rubber.Carbon black can be considered as a one of the oldest manufactured products and its usage as a pigment of India inks and mural paints can be traced back to the ancient Chinese and Egyptians. The most important event which had the greatest influence on the usage of carbon black occurred at the beginning of the former century and involved the discovery of the reinforcing effect of carbon blacks when added to natural rubber, a discovery that was to become one of the most significant milestones in the rubber and automotive industry. By using carbon black as a reinforcing filler the service life of a tire was greatly increased, ultimately making it possible to achieve a range of several ten thousand kilometers. 3Since the early nineteen-forties, carbon blacks have been complemented by the group of highly active silicas. Technological reasons have long prevented silicas from being used in tire compounds. Conventionally, carbon black is considered to be a more effective reinforcing filler for rubber tire treads than silica, if the silica is used without a coupling agent. In comparison with carbon black there tends to be a lack of, or at least an insufficient degree of physical and/or chemical bonding between the silica particles and the rubber. This is necessary to enable the silica to become a reinforcing filler for the rubber for most purposes, including tire treads. To overcome such deficiencies, additives capable of reacting with both the silica surface and the rubber molecules, generally known as coupling agents became a necessity during compounding 4 . Silica offers several advantages over carbon black. In tire treads, silica yields a comparable wear resistance and better wet grip in combination with a lower rolling resistance than carbon black when used in combination with a coupling agent 5,6 .Since rubber and carbon black are both hydrophobic substances, problems rarely arise when the two are mixed. When silica is mixed however with the commonly used non-polar, olefinic hydrocarbon rubbers, there will be a greater occurrence of hydrogenbond interactions between surface silanol groups in silica agglomerates than of interactions between polar siloxane or silanol groups and the rubber, so mixing silica with rubber involves major problems 7 . For this reason there is great intere...

show abstract

Organometallic Polymers of Germanium, Tin and Lead

Jurkschat

Mehring

2009

Patai's Chemistry of Functional Groups

View full text Add to dashboard Cite

show abstract

Tin‐coupled styrene‐butadiene rubbers (SBRs). Relationship between coupling type and properties

Cited by 9 publications

References 7 publications

End Functionalization of Styrene–Butadiene Rubber with Poly(ethylene glycol)–poly(dimethylsiloxane) Terminator

End Functionalization of Styrene–Butadiene Rubber with Poly(ethylene glycol)–poly(dimethylsiloxane) Terminator

Silica-silane reinforced passenger car tire treads : effect of silica morphology, silica-polymer interface structure and rubber matrix network on tire-performance indicators

Organometallic Polymers of Germanium, Tin and Lead

Contact Info

Product

Resources

About