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Pyromellitic DianhydridePyromellitic Dianhydride (CAS 89-32-7),We offer two grades of content: 98% and 99.5% .99.5% grade is the primary product for exporting. It is mainly used as a monomer for the synthesis of polyimideread more
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Acrylamide SolutionAcrylamide aqueous solution is a solution containing acrylamide,It is generally obtained by directly dissolving acrylamide in an aqueous solution.read more
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Acrylamide Crystal 98%Acrylamide Crystal 98% (CAS 79-06-1 ), also known as AM, the molecule of it has two active centers,both weak acidic and weak alkaline, so it is easy to self-polymerize.It is soluble inread more
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Polyether Polyols For PolyurethanesPolyether polyols (PPG)are a class of macromolecular compounds formed by alkali-catalyzed polymerization of ethylene oxide, propylene oxide, or other epoxides.read more
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1,3-Bis(4-aMinophenoxy)benzene1, 3-bis (4-aMinophenoxy)benzene, TPE-R, CAS 2479-46-1, molecular formula C18H16N2O2, molecular weight 292.3318. It is a kind of chemical intermediate, containing two ether bonds and three benzeneread more
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DiphenylmethaneDiphenylmethane (CAS 101-81-5), with a purity of 99.0% minimum, has aromatic properties and serves as an important intermediate in organic synthesis. It and its derivatives are widely used in variousread more
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2-amino-2-methyl-1-propanol2-amino-2-methyl-1-propanol (AMP):is a high-performance additive and organic synthetic raw material that can be applied in electronics, new energy, cos-metics, coatings and inks, metal cutting,read more
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Trimellitic AnhydrideTrimellitic Anhydride (CAS 552-30-7), Purity 97% min, is a white, flaky solid and primarily used to produce the PVC plasticizer dioctyl trimeric acid (TOTM).read more
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Maleic AnhydrideMaleic anhydride (CAS 108-31-6), Purity 99.%min, we can supply Reach certificate.In stock.read more
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Phthalic AnhydridePhthalic anhydride (CAS 85-44-9), purity 99.5%. We can provide both OX-BASE PA and NP-BASE PA. Our OX-BASE PA exceeds the national standard for superior grade.read more
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Pyromellitic AcidPyromellitic acid (CAS 89-05-4), Purity 99.0% min. It is obtained by hydrolyzing the crude pyromellitic dianhydride and it is the main raw material used in the production of the curing agent B68 forread more
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4,4 Diaminodiphenyl Ether4,4'-Diaminodiphenyl Ether, also known as ODA (4,4'-Diaminodiphenyl Ether), is an important organic compound with the formula C12H12N2O and a molecular weight of 200.24.read more
Dec 1, 2024 · Pyromellitic dianhydride (PMDA, >98.0 %) obtained from TCI Deutschland GmbH (Eschborn, Germany) and 4,4′-oxy-dianiline (ODA, 97 %) purchased from Sigma-Aldrich...
Mar 21, 2022 · Advanced polyimide films for electronic applications are typically made from aromatic dianhydrides (PMDA, or/and BPDA) and aromatic diamines (ODA, or/and PDA),...
Curing at temperatures above the glass transition in crystallizable stiff polyimides such as BPDA//PPD and PMDA//ODA results in an increase in birefringence, in plane CTE and biaxial...
Sep 18, 2021 · The order of Ψ2′s and Ψ3′s rotation barriers from big to small is PMDA/3,4′-ODA>BPDA/3,4′-ODA>BPDA/4,4′-ODA>PMDA/4,4′-ODA; it is consistent with the order of the...
Dec 1, 2020 · In this work, the hydrolysis of the polyimide synthesized from 1,2,4,5-benzenetetracarboxylic anhydride (pyromellitic dianhydride, PMDA) and ODA was examined...
Nov 1, 1994 · Tunable dielectric and other properties in high-performance sandwich-type polyimide films achieved by adjusting the porous structure. Journal of Materials Chemistry C 2019, 7 (24) ,...
