Description

Isobutylene/Ethylmaleimide/Hydroxyethylmaleimide Copolymer is a specialized functional polymer designed for advanced material applications. This copolymer is engineered to provide a unique balance of properties derived from its isobutylene backbone and reactive maleimide side chains, making it a valuable intermediate for high-performance formulations. It is particularly sought after by manufacturers in the coatings, adhesives, and specialty polymer industries seeking to enhance product durability, adhesion, and chemical resistance.

Application

• As a key component in the formulation of high-performance industrial coatings and paints, providing enhanced weatherability and chemical resistance.
• As a reactive modifier or crosslinking agent in specialty adhesives and sealants to improve bond strength and thermal stability.
• In the production of advanced composite materials, where it can act as a matrix resin or toughening agent.
• As a functional additive in oilfield chemicals, such as for viscosity modification or as a component in drilling fluid additives.
• For the synthesis of ion-exchange resins or other functional polymers due to the reactivity of the maleimide groups.
• In the development of photoresists and electronic materials for the semiconductor industry.
• As a compatibilizer or impact modifier in polymer blends and alloys.

Basic Information

Product Name	Isobutylene/Ethylmaleimide/Hydroxyethylmaleimide Copolymer
CAS No.	283148-39-0
Molecular Formula	(C4H8.C6H7NO2.C6H9NO3)x
Molecular Weight	Varies (Polymer)
Synonyms	2-Butene, 2-methyl-, polymer with 1-ethyl-1H-pyrrole-2,5-dione and 2-hydroxyethyl-2,5-pyrroledione; Poly(isobutylene-co-ethylmaleimide-co-hydroxyethylmaleimide); Isobutylene Ethylmaleimide Hydroxyethylmaleimide Terpolymer; IB-EMI-HEMI Copolymer; Reactive Isobutylene-Maleimide Copolymer; Functional Polyisobutylene
EINECS	Contact for details

Quality Control

Our Isobutylene/Ethylmaleimide/Hydroxyethylmaleimide Copolymer is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency in molecular weight distribution, composition, and functional group content. Certificates of Analysis (COA) detailing key parameters are available upon request to support your quality assurance and regulatory needs.

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). Keep away from heat sources and incompatible materials. As a polymeric material, prolonged exposure to elevated temperatures should be avoided to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms to structure
Assay (Maleimide Content)	Contact for details
Molecular Weight (Mw)	Tailored per grade
Polydispersity Index (PDI)	< 2.5
Residual Monomer	< 0.5%
Moisture Content	< 1.0%

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