One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, Product Details of 18959-30-3, such as the rate of change in the concentration of reactants or products with time.In a article, mentioned the application of 18959-30-3, Name is 4,5-Difluorophthalic Anhydride, molecular formula is C8H2F2O3
A series of addition-type imide oligomer (degree of polymerization: n=1-9) derived from 2,3,3′,4′-diphenyl ether tetracarboxylic acid dianhydride (a-ODPA), 3,4′-oxydianiline (3,4′-ODA) and 4-phenylethynylphthalic anhydride (PEPA) was synthesized by thermal imidization. The resultant oligomers were characterized for their chemical architecture, thermal property, and processability. The experimental results showed that oligomers PI-1 and PI-2 had somewhat crystalline phase. PI-4, PI-6 and PI-9 exihibited high solubility in solvents. These imide oligomers have a very low melt viscosity, and thus provide wide processing window by the rheological behaviors. Furthermore, the cured polyimides exhibited excellent thermal stability under N2 atmosphere. The temperatures of 5? weight loss in N2 atmosphere were all above 524C.
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Reference：
Benzofuran – Wikipedia,
Benzofuran | C8H2980O – PubChem