Description

1,3-Butadiene, Homopolymer, Carboxy-Terminated is a synthetic liquid polymer featuring reactive carboxyl end groups. This functionalized polymer is valued for its ability to act as a macromolecular building block, enabling the synthesis of more complex polymeric architectures. It is primarily utilized in the development of advanced materials, including impact modifiers, toughening agents, and specialized adhesives. The carboxy-termination provides a versatile handle for further chemical modification and crosslinking.

Application

• As a reactive intermediate in the synthesis of block copolymers and graft polymers.
• As an impact modifier and toughening agent for engineering plastics and epoxy resin systems.
• In the formulation of high-performance adhesives and sealants, where it contributes to flexibility and adhesion.
• As a macroinitiator or chain transfer agent in controlled radical polymerization processes.
• For the modification of asphalt to improve its elastic and low-temperature properties.
• In the production of specialty coatings that require enhanced durability and chemical resistance.

Basic Information

Product Name	1,3-Butadiene, Homopolymer, Carboxy-Terminated
CAS No.	68441-48-5
Molecular Formula	(C4H6)n with terminal COOH groups
Molecular Weight	Variable (Typically 1,000 - 10,000 g/mol)
Synonyms	Carboxy-Terminated Polybutadiene; CTB; Polybutadiene, carboxy-terminated; Butadiene homopolymer with carboxyl end groups; Liquid carboxyl-terminated polybutadiene; Reactive liquid polymer; LCP; HYCAR CTB; Krasol LBH
EINECS	Contact for details

Quality Control

Our 1,3-Butadiene, Homopolymer, Carboxy-Terminated is manufactured under a rigorous quality management system. Each batch is characterized for critical parameters including acid value, molecular weight, and viscosity to ensure consistency and performance. Certificates of Analysis (COA) detailing these specifications are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area under an inert atmosphere (e.g., nitrogen) to prevent oxidation. Recommended storage temperature is between 15-25°C. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 4
Acid Value (mg KOH/g)	Contact for details
Viscosity (cP @ 25°C)	Contact for details
Number Average Molecular Weight (Mn)	Contact for details
Moisture Content (KF)	≤ 0.1%

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