The molecular formula and structure of BHA and BHT are as follows :
BHT i.e., Butylated Hydroxy Toluene
Formula : `((CH_(3))_(3)C)_(2)CH_(3)C_(6)H_(2)OH(C_(15)H_(24)O)`
BHA i.e., Butylated Hydroxy Anisole.
Formula : `(CH_(3))_(3)C-C_(6)H_(3)-(OCH_(3))(OH)(C_(11)H_(16)O_(2))`
Thermoplastic polymers : A thermoplastic (also called thermosoftening plastic) is a polymer which becomes pliable or moldable above a specific temperature and returns to a solid state upon cooling.
Most thermoplastic polymers have a high molecular weight and polymer chains associate through intermolecular forces.
The physical properties of a thermoplastic polymer change drastically without an associated phase change below its melting point and above its glass transition temperature. Example : PMMA i.e., poly methyl methacrylate, Nylon etc.
