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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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N,N-MethylenebisacrylamideN,N'-Methylenebisacrylamide (MBA) (CAS 110-26-9) ,is also known as methylene bis-acrylamide.It is white powder,odorless,minimal hygroscopicity.It is easy to self-crosslink in case of highread more
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99.5% Recrystallization PMDAPyromellitic Dianhydride (PMDA), due to its rigid benzene ring structure and the highly reactive anhydride groups, can effectively participate in polymerization reactions to form stable imide bonds.read 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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3,3’,4,4’-Biphenyl Tetracarboxylic Diandhydride3,3 ',4,4 '-Biphenyl tetracarboxylic diandhydride, also known as BPDA, CAS 2420-87-3, molecular formula C16H6O6, used in the production of polyimide products and composites, pharmaceuticalread 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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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
Mar 21, 2023 · Notably, PSPI involves photopatternable PI with photoactive agents and photopatternable PI precursors, such as poly(amic acid) (PAA) or poly(amic ester) (PAE) with...
Oct 1, 2016 · The PI (PMDA-ODA) nanofibers were first prepared by electrospinning PAA solution followed by thermal imidization; the PI nanofibers were then treated with typical chloromethylation to...
Aug 1, 2018 · In this study, three typical homo-PI fibers, derived from pyromellitic dianhydride(PMDA)/p-phenylene diamine(PDA), PMDA/4,4′-oxidianiline (ODA) and 3,3′,4,4′...
Sep 18, 2021 · Among its various structures, the PI based on the pyromellitic dianhydride (PMDA)/4,4′-oxidianiline (4,4′-ODA) system is widely used in microelectronics, engineering,...
Nov 1, 2010 · Thermally stable RO membranes were developed using PMDA/ODA PI membranes as substrate and MPDA/TMC polyamide as the top thin film. We prepared the PI substrate...
Mar 21, 2022 · To obtain PEsI films with the desired balanced properties, ODA was copolymerized with stiff/linear aromatic dianhydrides and diamines, resulting in three...
