4,4'-(4,4'-isopropylidenediphenoxy)bis-(phthalic anhydride) (BPADA)

CAS Number 38103-06-9

Chemistry Building Blocks, COF Ligands, Diamines and Dianhydrides, Heterocyclic Building Blocks, Materials, Monomers, Porous Organic Frameworks

MSDS

4,4'-(4,4'-isopropylidenediphenoxy)bis-(phthalic anhydride) (BPADA) CAS 38103-06-9

A bisphenol A cored diphthalic anhydride building block

As an intermediate for polyimides preparation in application of ion transporting membranes, display substrates and high performance polymers

Specifications | MSDS | Literature and Reviews

4,4'-(4,4'-isopropylidenediphenoxy)bis-(phthalic anhydride) (BPADA), CAS number 38103-06-9, is a dianhydride building block with a bisphenol A core. BPADA is a precursor for the synthesis of the polyimides that have high thermal stability and strong mechanical properties, owing to its bisphenol A core. The polyimide films synthesised from this molecule are not fully conjugated, resulting a high optical transparency. Those film are equibiaxially stretchable and have high glass transition temperature (T_g = 207 °C), which are ideal for flexible display substrates. Other than high thermal resistance, this kind of polyimides are also chemically inert and can be applied as ion transporting membranes in fuel cells applications.

BPADA is also used to fabricate aerogels exhibiting super hydrophobicity (lotus effect).

General Information

CAS Number	38103-06-9
Chemical Formula	C₃₁H₂₀O₈
Full Name	2,2-Bis(4-(3,4-dicarboxyphenoxy)phenyl)propane dianhydride
Molecular Weight	520.49 g/mol
Synonyms	4,4′-Bisphenol A diphthalic anhydride, 4,4'-(4,4'-Isopropylidenediphenoxy)diphthalic anhydride
Classification / Family	Dianhydride building blocks, Polyimides, Fuel cell membranes

Chemical Structure

Product Details

Purity	>99%
Melting Point	T_m = 184 °C – 187 °C
Appearance	Pale yellow to yellow powder/crystal

MSDS Documentation

4,4'-(4,4'-isopropylidenediphenoxy)bis-(phthalic anhydride) (BPADA) MSDS Sheet

Literature and Reviews

Equibiaxially stretchable colorless and transparent polyimides for flexible display substrates, J.-H. Chang, Rev. Adv. Mater. Sci., 59, 1–9(2020); DOI: 10.1515/rams-2020-0003.
Intrinsically electroactive polyimide microspheres fabricated by electrospraying technology for ascorbic acid detection, C.-J. Weng et al., J. Mater. Chem., 21, 15666-15672(2011); DOI: 10.1039/c1jm12422f.
Ion transport within random-sulfonated and block-sulfonated copolyimides, M. Hibbs et al., J. Mater. Sci., 48, 1303–1309(2013); DOI: 10.1007/s10853-012-6873-5.
Template-free self-assembly of fluorine-free hydrophobic polyimide aerogels with lotus or petal effect, X. Li et al., ACS Appl. Mater. Interfaces, 10(19), 16901–16910(2018); DOI: 10.1021/acsami.8b04081.
Thermal and mechanical properties of polyimide/nano-silica hybrid films, M.-H. Tsai et al., Thin Solid Films, 519, 5238-5242(2011); DOI: 10.1016/j.tsf.2011.01.167.