Inhibitor 701 Primary Active Substance

Polymerization Inhibitor 701 (Piperidinol oxide CAS: 2226-96-2) exhibits a good inhibitory effect on olefin monomers and their derivatives, such as acrylates, methacrylates, acrylic acid, acrylonitrile, styrene, and butadiene. Its inhibition performance is superior to inhibitors like phenols, aromatic amines, ethers, quinones, and nitro compounds.

Acrylates

A general term for esters of acrylic acid and its homologues. Important examples include methyl acrylate, ethyl acrylate, methyl methacrylate, and ethyl methacrylate. They can undergo homopolymerization or copolymerize with other monomers and are used as monomers for producing adhesives, synthetic resins, special rubbers, and plastics. Acrylic resins are widely used in medical adhesives.

Methacrylates

An important chemical raw material, it is the monomer for producing the transparent plastic polymethyl methacrylate (PMMA, also known as organic glass).

Acrylic Acid

Chemically reactive, it easily polymerizes in air. Hydrogenation reduces it to propionic acid. Addition with hydrogen chloride generates 2-chloropropionic acid. It is used to prepare acrylic resins (for coatings) and for other organic synthesis.

Acrylonitrile

Acrylonitrile is an important monomer for synthetic fibers, synthetic rubber, and synthetic resins. Polyacrylonitrile fiber, known as acrylic fiber, is produced from acrylonitrile; its properties are very similar to wool, hence it's also called synthetic wool. Copolymerization of acrylonitrile with butadiene produces nitrile rubber, which has good oil resistance, cold resistance, wear resistance, and electrical insulation properties, and remains relatively stable under the influence of most chemical solvents, sunlight, and heat. Copolymerization of acrylonitrile with butadiene and styrene produces ABS resin, known for its light weight, cold resistance, and good impact resistance. Hydrolysis of acrylonitrile yields acrylamide and acrylic acid and its esters, which are important organic chemical raw materials. Acrylonitrile can also undergo electrolytic hydrodimerization to produce adiponitrile, which can then be hydrogenated to produce hexamethylenediamine, a raw material for Nylon 66. It can be used to make water repellents and adhesives, and is also used in other organic synthesis and the pharmaceutical industry, as well as a grain fumigant. Furthermore, it is also a non-protonic polar solvent and serves as a raw material for the oilfield drilling mud additive PAC142. Acrylonitrile is also an intermediate for the insecticide chlorfenapyr.

Styrene

Industrially, it is an important monomer for synthetic resins, ion exchange resins, and synthetic rubber.

Its most important use is as a monomer for synthetic rubber and plastics, used to produce styrene-butadiene rubber, polystyrene, and expanded polystyrene. It is also used in copolymerization with other monomers to manufacture various engineering plastics for different applications. For example, copolymerization with acrylonitrile and butadiene produces ABS resin, widely used in various household appliances and industries; copolymerization with acrylonitrile produces SAN, a resin with impact resistance and bright color; copolymerization with butadiene produces SBS, a thermoplastic rubber widely used as a modifier for PVC and polypropylene.

Styrene is mainly used to produce styrene-based resins and styrene-butadiene rubber. It is also a raw material for producing ion exchange resins and pharmaceuticals. Additionally, styrene can be used in pharmaceuticals, dyes, pesticides, and mineral processing industries.

Butadiene

It is a raw material for producing synthetic rubber, synthetic resins, nylon, etc. Butadiene is the main raw material for producing synthetic rubbers (such as SBR, polybutadiene rubber, nitrile rubber, neoprene). With the development of styrene plastics, the copolymerization of styrene with butadiene is used to produce various widely applicable resins (e.g., ABS resin, SBS resin, BS resin, MBS resin), making butadiene increasingly important in resin production. Furthermore, butadiene is also used to produce ethylidenenorbornene (the third monomer for EPDM rubber), 1,4-butanediol (for engineering plastics), adiponitrile (monomer for Nylon 66), sulfolane, anthraquinone, tetrahydrofuran, etc. Thus, it is also an important basic chemical raw material. Butadiene also has many uses in the production of fine chemicals. Fine chemicals produced using butadiene as a raw material: using cobalt complexes as catalysts, its dimer, trimer, and tetramer are all raw materials for synthesizing alcohols and macrocyclic musks.