Description

Methylaluminoxane CAS NO 120144-90-3 is a versatile organoaluminum compound widely recognized as a highly effective co-catalyst in Ziegler-Natta and metallocene polymerization systems. Its primary value lies in its exceptional ability to activate metallocene catalysts, dramatically increasing polymerization activity and enabling precise control over polymer microstructure. This product is essential for manufacturers in the polyolefin industry, particularly for producing specialty polymers like polyethylene and polypropylene with tailored properties.

Application

• Primary co-catalyst for metallocene catalysts in the production of polyethylene (PE) and polypropylene (PP).
• Essential component in single-site catalyst systems for creating advanced polyolefin elastomers (POE) and plastomers.
• Used in the synthesis of syndiotactic polystyrene and other stereospecific polymers.
• Employed as an activator in olefin oligomerization and copolymerization processes.
• Facilitates the production of high-performance, film-grade linear low-density polyethylene (LLDPE).
• Key reagent in organometallic chemistry and catalytic reaction research.

Basic Information

Item	Details
Product Name	Methylaluminoxane
CAS No.	120144-90-3
Molecular Formula	(CH3AlO)n
Molecular Weight	Variable polymer
Synonyms	MAO; Methylalumoxane; Polymethylaluminoxane; Aluminoxane, methyl-; Aluminum, methyloxo-; (Methylalumoxane); Tris(pentafluorophenyl)borane activator; Modified methylaluminoxane (MMAO)
EINECS	Contact for details

Quality Control

Our Methylaluminoxane is produced under stringent quality management protocols to ensure batch-to-batch consistency and high catalytic performance. The product undergoes rigorous analysis, including determination of aluminum content, residual trimethylaluminum (TMA), and activity testing in standard polymerization trials. A comprehensive Certificate of Analysis (COA) detailing all relevant specifications is provided with each shipment to guarantee compliance with your process requirements.

Storage

Preserve in a tightly closed container, protected from light. Due to its highly hygroscopic and pyrophoric nature, this material must be stored and handled under an inert atmosphere (argon or nitrogen). Recommended storage temperature is 2-8°C (cold chain) to maintain stability and activity. Keep away from heat, sparks, open flames, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow solution or solid
Assay (Al content)	Contact for details
Solvent (Typical)	Toluene, Heptane, or as specified
Concentration	10% w/w in toluene (or as requested)
Activity Test	Passes standard polymerization activity test

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