Diamine compound and method for producing same
AssigneeLG Chem, Ltd.
InventorsCheolmin YUN, Jun Sik SUH, Kyungjun KIM
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Abstract
The present invention provides a novel diamine compound capable of producing a polymer which exhibits greatly enhanced mechanical properties and heat resistance while maintaining transparency. A film including a polymer produced using the diamine compound has excellent transparency, heat resistance, mechanical strength and flexibility, and thus can be used in various fields, such as in a device substrate, a display cover substrate, an optical film, an Integrated circuit (IC) package, an adhesive film, a multi-layer flexible printed circuit (FPC), a tape, a touch panel and an optical disc protection film, and the like.
Claims19
A diamine compound represented by the following Chemical Formula 1:
- wherein,
- Q1 and Q2 are each independently selected from a fluoride atom (F), a C1-10 fluoroalkyl group, a C6-30 fluoroaryl group and a cyano group (CN);
- and
- R is a hydrogen atom, a C1-10 alkyl group or a C6-30 aryl group.
A method for manufacturing a diamine compound which comprises the following steps of:
- reacting the compound of the following Chemical Formula 3 and the compound of the following Chemical Formula 4 to manufacture the compound of Chemical Formula 5;
- and
- hydrogenating the compound of Chemical Formula 5 to form the compound of Chemical Formula 6:
- wherein,
- Q1 and Q2 are each independently selected from a fluoride atom (F), a C1-10 fluoroalkyl group, a C6-30 fluoroaryl group and a cyano group (CN);
- W is selected from a hydroxyl group (—OH), a fluoro group (—F), a chloro group (—Cl), a bromo group (—Br), an iodo group (—I) and an alkoxyl group (—OR′), wherein R′ is a C1-3 alkyl group;
- and
- G is selected from —NO2 or —NH (PG), wherein PG is a protecting group selected from the group consisting of carbobenzyloxy (Cbz), p-methoxybenzyl carbonyl (Moz), tert-butyloxycarbonyl (BOC), 9-fluorenylmethyloxycarbonyl (FMOC), acetyl (Ac), benzoyl (Bz), benzyl (Bn), Carbamate, p-methoxybenzyl (PMB), 3,4-dimethoxybenzyl (DMPM), p-methoxyphenyl (PMP), tosyl (Ts) and nosyl (Ns).
A transparent film manufactured with polyimide, polyamic acid, polyamide or polyamide-imide,
- wherein the transparent film which has the haze of 2 or less, a coefficient of thermal expansion (CTE) in a range from 0 ppm/° C. to 50 ppm/° C. at a temperature ranging from 50° C. to 200° C., and when measured by repeating a heating and cooling process 2m+1 times (m is an integer of 1 to 3) at the above temperature range, the E (%) calculated according to the following Formula 1 of −20≤E≤0 and the K (%) calculated according to Formula 2 of 0≤K≤20:
- (Minimum CTE value−Average CTE value)/Average CTE value×100=E [Formula 1]
- (Maximum CTE value−Average CTE value)/Average CTE value×100=K [Formula 2]
Dependencies are inferred from the claim text.