Description

1,3-Butadiene, 2-Methyl-, Homopolymer, Of cis-1,4-Configuration, Depolymd. CAS NO 68425-13-8 is a synthetic polymer derived from isoprene, characterized by its predominantly cis-1,4 configuration, which imparts specific elastomeric properties. This material is valued for its high purity and consistent molecular structure, making it a critical intermediate and performance additive in advanced manufacturing. It is primarily sought by industries involved in the production of specialty adhesives, sealants, and high-performance rubber compounds where precise polymer architecture is required for optimal performance.

Application

• Adhesive & Sealant Formulation: Serves as a key tackifier and elastomeric base in pressure-sensitive adhesives (PSAs) and high-performance sealants.
• Rubber Compounding: Used as a modifying agent or base polymer in the manufacture of specialized synthetic rubbers, enhancing flexibility and resilience.
• Polymer Modification: Acts as a reactive intermediate or compatibilizer in the synthesis and modification of other polymers to tailor properties like impact resistance and weatherability.
• Industrial Coatings: Incorporated into coating formulations to improve film-forming characteristics, adhesion, and durability.
• Oil & Fuel Additives: Utilized as a component in viscosity index improvers and deposit control additives for lubricants and fuels.
• Research & Development: Employed as a standard or starting material in chemical R&D for studying polymer degradation, synthesis pathways, and material science.

Basic Information

Item	Details
Product Name	1,3-Butadiene, 2-Methyl-, Homopolymer, Of cis-1,4-Configuration, Depolymd.
CAS No.	68425-13-8
Molecular Formula	(C5H8)n
Molecular Weight	Varies (Polymer)
Synonyms	Depolymerized Natural Rubber; cis-1,4-Polyisoprene, Depolymerized; Liquid Natural Rubber (LNR); Low Molecular Weight Polyisoprene; Depolyisoprene; Isoprene Homopolymer, cis-1,4-; Depolymerized Isoprene Rubber; Synthetic Liquid Polyisoprene
EINECS	Contact for details

Quality Control

Our 1,3-Butadiene, 2-Methyl-, Homopolymer is produced under strict quality management protocols. Each batch undergoes comprehensive analysis to ensure consistency in molecular weight distribution, cis-content, and purity. Certificates of Analysis (COA) documenting key parameters such as viscosity, residual solvent, and functional group analysis are available upon request. We adhere to relevant industry standards to guarantee material suitability for your specific application.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material may be sensitive to prolonged heat and oxidation; it is recommended to store under an inert atmosphere for long-term stability. Keep away from strong oxidizing agents and sources of ignition.

Specification

Item	Specification
Appearance	Viscous liquid to semi-solid
Identification (IR)	Conforms to structure
cis-1,4 Content	> 90%
Viscosity (Brookfield)	Specified range available
Molecular Weight (GPC)	Low to Medium (Tailored)
Color (Gardner)	< 5
Acid Value	< 1.0 mg KOH/g
Moisture Content (KF)	< 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.