BPDA or biphenyl-tetracarboxylic acid dianhydride is a
monomer
In chemistry, a monomer ( ; ''mono-'', "one" + '' -mer'', "part") is a molecule that can react together with other monomer molecules to form a larger polymer chain or three-dimensional network in a process called polymerization.
Classification
...
used in the production of some
polyimide
Polyimide (sometimes abbreviated PI) is a polymer containing imide groups belonging to the class of high-performance plastics. With their high heat-resistance, polyimides enjoy diverse applications in roles demanding rugged organic materials, e.g ...
s.
Applications
*Tape automated bonding (TAB), chip on film (COF), lead lock tape, high density flexible printed circuit (FPC), stiffener for FPC, office automation equipment, flexible
solar cell
A solar cell, or photovoltaic cell, is an electronic device that converts the energy of light directly into electricity by the photovoltaic effect, which is a physical and chemical phenomenon.[printed circuit board
A printed circuit board (PCB; also printed wiring board or PWB) is a medium used in electrical and electronic engineering to connect electronic components to one another in a controlled manner. It takes the form of a laminated sandwich str ...]
s, metallic substrates, sheet heating elements, heat resistance wires.
Characteristics
* Physical, mechanical, electrical, and chemical properties under high-temperature conditions.
* High tensile strength and modulus, and also features outstanding long-term heat resistance.
Analytics
The chemical shifts in
1H and
13C NMR spectroscopy are given in the literature.
The melting point is 299 - 301 °C.
See also
*
Polyamide
A polyamide is a polymer with repeating units linked by amide bonds.
Polyamides occur both naturally and artificially. Examples of naturally occurring polyamides are proteins, such as wool and silk. Artificially made polyamides can be made throug ...
*
UPILEX
Upilex is a heat-resistant polyimide film that is the product of the polycondensation reaction between biphenyl tetracarboxylic dianhydride ( BPDA) monomers and a diamine. Its properties include dimensional stability, low water absorption, high c ...
References
{{DEFAULTSORT:Bpda
Monomers
Biphenyls
Carboxylic anhydrides