| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a new terminus modified imide oligomer, which has excellent solubility in an organic solvent and moldability such as low melt viscosity and produces a cured product having high heat resistance, elastic modulus, mechanical characteristics such as tensile strength and elongation, in particular high elastic modulus, and to provide a varnish and a cured product of it. Ž<P>SOLUTION: This imide oligomer is represented by general formula (1). In the formula, R<SB>1</SB>and R<SB>2</SB>are divalent aromatic diamine residues; R<SB>3</SB>and R<SB>4</SB>are each independently 1-4C alkyl group, monovalent aromatic group or hydrogen; m and n satisfy the following relationships m≥1, n≥0, 1≤m+n≤20 and 0.05≤m/(m+n)≤1; and the arrangement of repeating units may be a block arrangement or a random arrangement. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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