RELATIONSHIP BETWEEN RUBBER OIL AND ANTI-YELLOWING PERFORMANCE OF OIL-EXTENDED THERMOPLASTIC ELASTOMER STYRENE–BUTADIENE–STYRENE

2015 ◽  
Vol 88 (3) ◽  
pp. 515-526 ◽  
Author(s):  
Bingshui Ma ◽  
Jincan Yan ◽  
Yan Liu ◽  
Tianhui Ren
Keyword(s):  
Aromatic Hydrocarbons ◽  
Triblock Copolymer ◽  
Thermoplastic Elastomer ◽  
Structural Composition ◽  
Styrene Butadiene Styrene ◽  
Styrene Butadiene ◽  
The Relationship ◽  
Naphthenic Hydrocarbons ◽  
Better Than ◽  
Butadiene Styrene

ABSTRACT The relationship between structural composition of rubber oil and anti-yellowing performance of oil-extended polystyrene-block-polybutadiene-block-polystyrene triblock copolymer (SBS) was studied in this work. The experimental results proved that anti-yellowing of oil-extended SBS was determined by the rubber oil and was irrelevant with SBS. The anti-yellowing performance of the SBS filled with paraffinic-based rubber oil was better than that of the SBS filled with naphthenic-based rubber oil. In addition to the partially hydrogenated aromatic hydrocarbons in rubber oil, heavy naphthenic hydrocarbons may be another factor that results in yellowing of rubber oil and oil-extended SBS.

Polyolefin Thermoplastic Elastomer Blends

1991 ◽  
Vol 64 (3) ◽  
pp. 469-480 ◽  
Author(s):  
E. N. Kresge
Keyword(s):  
Triblock Copolymer ◽  
Crosslink Density ◽  
Thermoplastic Elastomer ◽  
Thermoplastic Elastomers ◽  
Rubber Phase ◽  
Styrene Butadiene Styrene ◽  
Weather Resistance ◽  
Theological Properties ◽  
Styrene Butadiene ◽  
Butadiene Styrene

Abstract Thermoplastic elastomers based on blends of polyolefins are an important family of engineering materials. Their importance arises from a combination of rubbery properties along with their thermoplastic nature in contrast to thermoset elastomers. The development of polyolefin thermoplastic elastomer blends follows somewhat that of thermoplastic elastomers based on block copolymers such as styrene-butadiene-styrene triblock copolymer and multisegmented polyurethane thermoplastic elastomers which were instrumental in showing the utility of thermoplastic processing methods. Polyoleflns are based on coordination catalysts that do not easily lend themselves to block or multisegmented copolymer synthesis. However, since polyolefins have many important attributes favorable to useful elastomeric systems, there was considerable incentive to produce thermoplastic elastomers based on simple α-olefins by some means. Low density, chemical stability, weather resistance, and ability to accept compounding ingredients without compromising physical properties are highly desirable. These considerations led to the development of polyolefin thermoplastic elastomer blends, and two types are now widely used: blends of ethylene-propylene rubber (EPM) with polypropylene (PP) and blends of EPDM and PP in which the rubber phase is highly crosslinked. This article reviews the nature of these blends. Both physical and Theological properties are very dependent on the morphology and crosslink density of the blend system. Moreover, the usefulness of practical systems depends extensively on compounding technology based on added plasticizers and fillers.

TUNING PROPERTIES AND MORPHOLOGY IN HIGH VINYL CONTENT SBS BLOCK COPOLYMER, A THERMOPLASTIC ELASTOMER VIA THIOL-ENE MODIFICATION

2017 ◽  
Vol 90 (3) ◽  
pp. 550-561 ◽  
Author(s):  
Prithwiraj Mandal ◽  
Siva Ponnupandian ◽  
Soumyadip Choudhury ◽  
Nikhil K. Singha
Keyword(s):  
Block Copolymer ◽  
Thermoplastic Elastomer ◽  
Atomic Force Microscopy Analysis ◽  
Ene Reaction ◽  
Force Microscopy ◽  
Atomic Force ◽  
Microscopy Analysis ◽  
Styrene Butadiene Styrene ◽  
Styrene Butadiene ◽  
Butadiene Styrene

ABSTRACT Thiol-ene modification of high vinyl content thermoplastic elastomeric styrene butadiene styrene (SBS) block copolymer (BCP) was carried out using different thiolating agents in toluene at 70 °C. 1H NMR analysis confirmed the participation of vinyl double bond in the thiol-ene modification reaction of SBS. Surface morphology of the block copolymers evaluated by atomic force microscopy analysis showed higher roughness after the thiol-ene reaction. The thiol-modified SBS block copolymer showed better adhesion strength and oil resistance properties than the pristine SBS.

Compatibility and Storage Stability of Asphalt Binder Modified by Styrene-Butadiene-Styrene (SBS) Graft Copolymer

2021 ◽  
Vol 1036 ◽  
pp. 459-470
Author(s):  
Hong Gang Zhang ◽  
Qiang Huai Zhang ◽  
Xue Ting Wang ◽  
Hua Tan ◽  
Li Ning Gao ◽  
...  
Keyword(s):  
Triblock Copolymer ◽  
Storage Stability ◽  
Asphalt Binder ◽  
Solubility Parameters ◽  
Suitable Alternative ◽  
Modified Asphalt ◽  
Styrene Butadiene Styrene ◽  
Styrene Butadiene ◽  
Sbs Modified Asphalt ◽  
Butadiene Styrene

A styrene-butadiene-styrene triblock copolymer (SBS) was grafted with an unsaturated polar monomer (monomer A) composed of maleic anhydride (MAH) and methoxy polyethylene (MPEG) via a ring-opening reaction after epoxidizing styrene-butadiene-styrene triblock copolymer (ESBS). The microscopic changes of SBS before and after grafting has been characterized with Fourier transform infrared spectrum (FT-IR), X-ray photoelectron spectroscopy (XPS) and gel permeation chromatography (GPC). The results revealed that the monomer A was successfully grafted on SBS backbone, and the maximum graft ratio (GR) was 20.32%. To verify the compatibility between SBS and asphalt, solubility parameters and surface free energy (SFE) of SBS, grafted SBS and asphalt were measured. It was found that the solubility parameter and SFE of grafted SBS were closer to asphalt compared with SBS. It also has been confirmed from storage stability that the temperature susceptibility of grafted SBS modified asphalt was reduced in compare with SBS modified asphalt binder. As consequence, the use of grafted copolymer can be considered a suitable alternative for modification of asphalt binder in pavement.

Rheology of Styrene‐Butadiene‐Styrene Triblock Copolymer in n‐Tetradecane Systems

1984 ◽  
Vol 28 (4) ◽  
pp. 393-409 ◽  
Author(s):  
Hiroshi Watanabe ◽  
Souichiro Kuwahara ◽  
Tadao Kotaka
Keyword(s):  
Triblock Copolymer ◽  
Styrene Butadiene Styrene ◽  
Styrene Butadiene ◽  
Butadiene Styrene

Photoinitiator grafted styrene–butadiene–styrene triblock copolymer

2010 ◽  
Vol 30 (7) ◽  
pp. 1030-1037 ◽  
Author(s):  
Guoliang Wu ◽  
Songjun Zeng ◽  
Encai Ou ◽  
Puren Yu ◽  
Yanbing Lu ◽  
...  
Keyword(s):  
Triblock Copolymer ◽  
Styrene Butadiene Styrene ◽  
Styrene Butadiene ◽  
Butadiene Styrene
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