Polyimide compound having side chain and manufacturing method thereof
AssigneeUnimicron Technology Corp.
InventorHAN-PEI HUANG
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Abstract
A polyimide compound with a large side chain R and R′ is provided. The large side chain would interrupt the symmetry and regularity of polyimide compound. The polyimide compound has the general formula shown as formula (I) below: The functional group R and R′ are selecting individually from the group consisting: α-substitution cycloalkene with at least a tertiary carbon atom, cycloalkene with at least a tertiary carbon atom, cycloalkane with at least a tertiary carbon atom, α-substitution phenyl, phenyl, α-substitution naphthalyl, naphthalyl, α-substitution phenanthrenyl, phenanthrenyl, α-substitution anthracenyl, anthracenyl, α-substitution adamantyl, adamantyl, α-substitution diamantyl and diamantyl.
Claims9
A polyimide compound having side chain, comprising the general formula is shown as formula (I) below:
- wherein R and R′ group comprise aromatic hydrocarbon or alicyclic hydrocarbon.
A manufacturing method of polyimide compound having side chain, comprising:
- (A) dissolving diamine monomer (a) and dianhydride monomer (b) into cresol by stirring under anhydrous condition to form polyamic acid compound (c) solution,
- wherein the general formula of diamine monomer (a) is shown as formula (V) below:
- wherein the general formula of dianhydride monomer (b) is shown as formula (X) below:
- wherein the general formula of polyamic acid compound (c) is shown as formula (XII) below:
- wherein R and R′ comprises aromatic hydrocarbon or alicyclic hydrocarbon,
- wherein the reaction temperature is 20 to 30° C., the reaction time is 6 to 7 hours;
- (B) adding 5-10 drops of isoquinoline into polyamic acid compound solution, and heating refluxing the solution to form polyimide compound solution,
- wherein the reaction temperature is 100 to 200° C., the reaction time is 8 to 12 hours;
- and
- (C) cooling polyimide compound (d) solution and adding polyimide compound solution (d) into ethanol to precipitate out solid polyimide compound (d),
- wherein the general formula of polyimide compound (d) is shown as formula (I) below:
Dependencies are inferred from the claim text.