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tert-Butyl Methacrylate Low Acid (TBMA LA)

Chemical name TERT-BUTYL METHACRYLATE LOW ACID, (TBMA LA)
Chemical formula

C8 H14 O2

CAS # 585-07-09
EINECS # 209-548-7
Inhibitor (MEHQ) 20+/-20 ppm
Chemical name TERT-BUTYL METHACRYLATE LOW ACID, (TBMA LA)
Chemical formula

C8 H14 O2

CAS # 585-07-09
EINECS # 209-548-7
Inhibitor (MEHQ) 20+/-20 ppm

tert-Butyl Methacrylate Low Acid (TBMA LA)

tert-Butyl Methacrylate Low Acid (TBMA LA) is an ester of Methacrylic acid and is used as a raw material component in the synthesis of polymers. The ester is a monofunctional monomer consisting of a methacrylate group with a characteristic high reactivity and a cyclic hydrophobic group. It forms homopolymers and copolymers which can be obtained from acrylic acid and its salts, amides, and esters, etc.

tert-Butyl Methacrylate Low Acid (TBMA LA) is a very useful starting material for chemical syntheses because it readily undergoes addition reactions with a wide variety of organic and inorganic compounds.

Features & Benefits: 

  • Chemical resistance
  • Hydrophobicity
  • Hardness
  • Scratch resistance
  • Adhesion
  • Heat resistance
  • High solids
  • Weatherability

Characteristics: 

  • tert-Butyl Methacrylate moiety affords high hydrophobicity close to the polymer backbone.
  • High glass transition temperature (Tg 105°C) increases the hardness of polymer.
  • Selective heat and chemical resistance allow polymer modification in the processing of the final application.

Applications: 

  • Coatings and Inks
  • Plastics
  • Personal care
  • Adhesives

tert-Butyl Methacrylate Low Acid can be used in emulsion polymerization similar to other well-known acrylates like Butyl Methacrylate or Methylmethacrylate. As the hydrolytic stability under harsh acidic conditions is reduced for tert-Butyl Acrylate (elimination of iso-butylene), it is recommended to use for the polymerization a pH range of 3-4 (controlled via puffer or alkaline substances like ammonia or bicarbonate). With a higher share of TBMA  (as a substitute of MMA) in the polymer, we observe an increased tendency of cross-linking. Most probably due to the higher backbone crosslinking tendency of acrylates compared to methacrylates(radical transfer to polymer chain/backbone). Best results concerning particle size distribution were achieved by using a polymer seed, either as a ready polymer dispersion (e.g. polystyrene) or as an in-situ polymer seed.

 

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Physical Properties:
  • Purity
    ≥ 99.0 %
  • Acid Value
    ≤ 0.013 %
  • Water content
    ≤ 0.05
  • Color APHA (max)
    10
1
Chemical Properties:
  • Molecular weight [Mw g/mol]
    142.2
  • Polymer Tg [Tg °C]
    117
  • Tg [°C]
    105
  • Boiling Point [Bp °C]
    136
  • Melting Point [Mp °C]
    –48
  • Vapor Point [Vp mbar at °C]
    7.7 at 19
It can be purchased in bulk or packed in drums or IBC.
It can be purchased in bulk or packed in drums or IBC.
Delivery conditions It can be purchased in bulk or packed in drums or IBC.