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(organic chemistry)
Oil-extendable synthetic elastomer polymer made from butadiene; resilience is similar to natural rubber; it is blended with natural rubber for use in tire and other rubber products. Also known as butadiene rubber.



a product of butadiene polymerization. Molecules of butadiene may join together in the chain at the positions cis-1,4 (I); trans-1,4 (II); and 1,2- (III):

The relationship and distribution of the structures in the chain, which depend on the type of catalyst and on the method and conditions of polymerization, determine the properties of the polymer.

Four stereoregular polybutadienes (cis-1,4; trans-1,4; isotactic-1,2; syndiotactic-1,2), which are produced by stereo-specific polymerization, and several statistical polybutadienes are known. Rubber-like polybutadienes are of great industrial value. Polybutadienes that contain more than 70–90 percent trans-1,4 or 1,2- links of isotactic or syndiotactic structure are white, linearly crystallizing fiber-forming plastics. In the USA, trans-1,4 polybutadiene is produced commercially under the trade name Trans-4; it contains about 90 percent trans-1,4 links (number-average molecular weight, 100,000). It is soluble in benzene and CCl4 and is vulcanized by sulfur. Trans-4 vulcanizates are characterized by high strength and hardness and by a durability surpassing that of vulcanizates of natural and butadiene-styrene rubbers. Trans-4 is used in the manufacture of sole rubbers, flooring, gaskets, and other commercial products.


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References in periodicals archive ?
Knowing that both the microstructure of the elastomeric part and the thermoplastic architecture of the polymers play an important role in determining their thermo-mechanical behavior and that partial saturation of the polybutadiene isomers can be achieved by homogeneous catalytic hydrogenation, this study presents our results on the synthesis and characterization of a series of poly[(styrene-b-[(butadiene).
Title: Butadiene Market in Asia-Pacific to 2020 - Polybutadiene, Styrene Butadiene Rubber (SBR) and Acrylonitrile Butadiene Styrene (ABS) to Fuel Demand
It is made by the grafting copolymerization of styrene and AN onto polybutadiene latex, and subsequent blending with a styrene-acrylonitrile (SAN) copolymer.
Particularly, for high concentration of polybutadiene fraction, the demand in getting a compatibilizer is required.
No price increase has been announced for Sartomer's Krasol hydroxyl-terminated polybutadiene resins.
Using a wide range of primary and secondary sources, we combined, analyzed and presented all available data about polybutadiene rubber market in the all-in-one report issued in a logical and easily accessible format.
With the continuous optimization of the rubber product (such as tires) structure in China, the demand for solution polymerized styrene butadiene rubber (SSBR), halogenated butyl rubber (HIIR), neodymium polybutadiene rubber (Nd-BR), low cis-polybutadiene rubber (LCBR) and other environmentally-friendly rubber products will increase significantly in the future.
With the ability to produce several thousand tons of product per year, the plant expands TCVs global market leading position in polybutadiene production, both in volume and range of functionality.
Styron's latex and synthetic rubber portfolio includes styrene-butadiene latex (SB latex) and styrene-acrylate latex (SA latex) as well as solution styrene-butadiene (SSBR), lithium polybutadiene (LiPBR), emulsion styrene-butadiene (ESBR) and nickel polybutadiene (Ni-PBR).
The polymeric polyols is not a polyester polyol, wherein the adhesive comprises from approximately 5% weight to 20% weight of the reactant and wherein the thermoplastic polymer is selected from the group comprising acrylic polymers, hydroxy functional acrylic polymers, polyvinyl acetate, polyvinyl chloride, methylene polyvinyl ether, cellulose acetate, styrene acrylonitrile, amorphous polyolefin, thermoplastic urethane, polyacrylonitrile, polybutadiene, and mixtures thereof.
The booklet contains three in-depth articles which present the findings of recent studies evaluating the performance of Sartomer's polybutadiene polyol and prepolymer products in various polyurethane applications.
has acquired worldwide marketing and sales rights for Krasol polybutadiene (PB) products from Kaucuk, a.