Para Tertiary Butyl Phenol

 

 

PARA TERTIARY BUTYL PHENOL（P-Tert-Butyl Phenol ）(PTBP)
UN Code: 3077
CAS No. 98-54-4
HS Code: 2907199090

 

 

1) Acidicity of phenolic hydroxyl groups: Exhibits the general characteristics of phenolic compounds. As a weak acid, it can react with bases to form salts (phenolate anions).

 

2) Electrophilic substitution reaction: Due to the tert-butyl group being a strong electron-donating group, it increases the electron density of the benzene ring (especially at the ortho position relative to the hydroxyl group), making it more reactive in electrophilic substitution reactions (such as alkylation, condensation) than phenol itself.

 

3) Spatial steric hindrance: The tert-butyl group is large in size, which has a significant spatial steric hindrance effect on the reactions at other positions on the ring, making certain reactions (such as ortho-substitution) more difficult.

 

4) Antioxidant capacity: The phenolic structure endows it with certain antioxidant properties.

 

 

A. Plastics Industry

1) Phenolic Resin Modifier: This is its most traditional application method. Adding it to the synthesis process of phenolic resin can enhance the oil solubility and flexibility of the resin. It can also reduce the brittleness of the resin and improve its processing performance.

 

2.) Tert-butylphenol is used in the production of special varnishes, insulating coatings and laminated materials.

 

3) Synthesis of tert-butylphenol-based resins: By directly reacting with formaldehyde, a class of important oil-soluble phenolic resins can be produced. These resins are mainly used in: rubber vulcanization agents (especially suitable for butyl rubber and natural rubber), with excellent heat resistance and aging resistance. Adhesive thickening resins for pressure-sensitive adhesives (such as labels and tapes).

 

4.) It is used as a film-forming resin for paints and inks in the production of toluene-benzyl phenol.

Toluene-benzyl phenol is a key starting material for synthesizing hindered phenolic antioxidants (such as antioxidant 1010, 1076, 1135). These antioxidants are widely used in plastics (polyolefins), rubber, lubricating oils and fuel oils to prevent thermal oxidation degradation.

 

5.) Tert-butylphenol is also a raw material for surfactants: By reacting with ethylene oxide, nonionic surfactants can be produced, and these surfactants are used in industrial operations such as emulsification and dispersion.

 

6.) Tert-butylphenol can also be used as an intermediate in perfumes and pesticides. It serves as an intermediate in the synthesis of certain musk-like fragrances (such as musk xylene) and an intermediate for highly effective pesticides (such as certain pyrethroid insecticides).

 

7.) Tert-butylphenol is also used in the production of ultraviolet absorbers, heat stabilizers for polyvinyl chloride (such as the precursors of certain organotin stabilizers), and other products.