tert-Butyl Methacrylate Monomer (stabilized with MEHQ) TCI M0326

tert-Butyl Methacrylate Monomer (stabilized with MEHQ) from TCI is a methacrylate monomer carrying a tert-butyl ester group, and it serves as an important raw material in modern polymer chemistry. The monomer is polymerized either through free-radical mechanisms or through controlled polymerization techniques such as RAFT and ATRP to produce poly(tert-butyl methacrylate). Its strategic value lies in the fact that the tert-butyl group functions as a protecting group that can be removed by acid treatment or by heating, so that the initial polymer can be converted into hydrophilic poly(methacrylic acid). This preparation is stabilized with MEHQ to prevent premature polymerization during storage and shipment.

The principal characteristics that make this monomer a preferred choice are its high yet still controllable polymerization reactivity, together with the bulky nature of the tert-butyl group, which gives the polymer chain a distinctive rigidity and an initial hydrophobicity. It takes the form of a colorless, clear liquid that is easy to handle with a syringe or a volumetric pipette in small-scale experiments. The presence of the MEHQ inhibitor maintains stability during storage, although this inhibitor generally needs to be removed before a polymerization run so that initiation proceeds reproducibly and the resulting molecular weight matches the design target.

In Indonesian laboratories, this monomer is typically used in university and institutional research groups working on polymer synthesis, materials chemistry, and functional coatings, as well as in industrial development laboratories that formulate acrylic systems. It is commonly drawn in small volumes for bench-scale polymerization trials, block copolymer preparation, and studies of protecting-group removal, where a monomer supplied under a recognized research brand supports consistent results across repeated experiments.

• Free-radical polymerization studies — the monomer reacts readily under standard radical initiation, making it a dependable substrate for teaching and investigating conventional chain-growth polymerization behavior in the laboratory.
• Controlled polymerization by RAFT and ATRP — its reactivity can be regulated under these techniques, allowing researchers to prepare poly(tert-butyl methacrylate) with the narrow, predictable chain characteristics such methods are chosen for.
• Precursor synthesis of poly(methacrylic acid) — the tert-butyl protecting group is cleanly removed by acid treatment or heating, converting the hydrophobic starting polymer into a hydrophilic polymethacrylic acid product.
• Block copolymer and amphiphilic material preparation — combining a hydrophobic tert-butyl ester block with subsequent deprotection gives researchers a direct route to amphiphilic architectures from a single monomer feedstock.
• Bench-scale materials chemistry experiments — supplied as a clear colorless liquid, it is conveniently measured with a syringe or volumetric pipette for small-volume trials where accurate dosing matters most.

Store the monomer in a cool, well-ventilated place away from heat sources, direct sunlight, and ignition sources, keeping the container tightly closed so that the MEHQ inhibitor remains effective and premature polymerization is avoided. Use the original supplier container or a compatible tightly sealed glass bottle, and avoid prolonged exposure to air once the container has been opened. Handle the liquid inside a fume hood while wearing safety goggles, gloves, and a laboratory coat, and dispense it with a syringe or volumetric pipette. Where the inhibitor must be removed for a polymerization run, prepare only the amount needed immediately before use, since inhibitor-free monomer is far more prone to spontaneous polymerization on standing.

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