Dianhydride Monomers For Optical Display Materials

Product Name Abbreviation CAS Number Key Characteristics / Research Focus 3,3',4,4'-Biphenyltetracarboxylic Dianhydride s-BPDA 2420-87-3 Rigid aromatic structure; high-performance polyimide synthesis 4,4'-Oxydiphthalic Anhydride ODPA 1823-59-2 Ether-linked structure; polymer flexibility and processability Cyclobutane-1,2,3,4-tetracarboxylic Dianhydride CBDA 4415-87-6 Cycloaliphatic structure; transparent polyimide research DMCBDA 137820-87-2 Specialized dianhydride for advanced polymer research p-Phenylenebis(trimellitate anhydride) TAHQ 2770-49-2 Aromatic dianhydride for specialty polymer development 3-(Carboxymethyl)-1,2,4-cyclopentanetricarboxylic Acid 1,4:2,3-Dianhydride — 6053-46-9 Functionalized cyclopentane-based structure 9,9-Bis(3,4-dicarboxyphenyl)fluorene Dianhydride BPAF 135876-30-1 Fluorene-based structure for tailored polyimide properties ?What are dianhydride monomers for optical display materials? Dianhydride monomers are key raw materials used with diamines to synthesize polyimides. Their molecular structures influence the optical transparency, thermal stability, mechanical properties, and processability of the resulting polymers. They are used in research and development for transparent films, flexible displays, electronic materials, and other advanced polymer applications. ?Which dianhydride monomers does UCHEM supply? UCHEM offers seven dianhydride monomers for optical display materials and advanced polyimide research: s-BPDA, ODPA, CBDA, DMCBDA, TAHQ, 3-(Carboxymethyl)-1,2,4-cyclopentanetricarboxylic acid 1,4:2,3-dianhydride, and BPAF. These products cover aromatic, ether-linked, cycloaliphatic, and fluorene-based molecular structures. ?How do you select a dianhydride monomer for polyimide development? Selection depends on the target polymer's required optical, thermal, mechanical, and processing properties. For example, CBDA is relevant to transparent polyimide research, ODPA introduces ether linkages into the polymer backbone, and s-BPDA is used in high-performance aromatic polyimides. The final properties also depend on the diamine, polymerization conditions, and film-processing method. ?Why source dianhydride monomers from UCHEM? UCHEM provides a portfolio of specialized dianhydride monomers for polymer synthesis and advanced materials research. Customers can contact UCHEM for product specifications, availability, and sourcing information.