• Journal of the Korean Graphic Arts Communication Society
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• v.18 no.2
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• pp.113-124
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• 2000

It is well known that the characteristics of liquid crystal polymer composite(LCPC) films are possessed of large-area and flexible display, polarizer free, high contrast, wide angle of visual filed and high responsiveness. In this study, we have investigated to the best optimal mixing rates chiral nematic liquid crystals and UV-curable resins having different properties acrylate moleculars. The purpose of this study has been the development of new functional application with liquid crystal polymer composite films. For example the films were applied a new thermal sensor. In results, best phase separation behaviors turned out liquid crystal/monomer/oilgomer mixture system.

• Textile Coloration and Finishing
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• v.6 no.2
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• pp.47-54
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• 1994

Cotton fiber, NaOH-mercerized cotton fiber, cotton fabric, and NaOH-mercerized cotton fabric have been treated by liquid ammonia at -33.4$^{\circ}C$. The fine structures, bending properties, tensile strengthes, shrinkages for laundering, and wrinkle recoveries were studied. The treatment of cottons with liquid ammonia brought about the transition of crystal lattice ; transforming cellulose I crystal of original cotton to cellulose I and III crystal, and cellulose II crystal of mercerized cotton to cellulose II and III crystals. The degree of crystallinities were decreased in the order of liquid ammonia>NaOH/liquid ammonia>NaOH-treated cotton. However moisture regain and water absorbency for liquid ammonia-treated cotton were lower than that of NaOH-treated cotton because of a difference in swelling actions of the agents. It seems caused by intermicrofibrillar pores produced in swelling processes. The bending rigidity and bending hysteresis were decreased remarkly by liquid ammonia treatment. Therefore softness and dimensional stability were improved. The liquid amminia and NaOH/liquid ammonia-treated cottons moreover show excellent properties in tensile strength, anti-shrinkage for laundering, and wrinkle recovery.

• Proceedings of the Optical Society of Korea Conference
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• 2005.02a
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• pp.182-183
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• 2005

• 한국정보디스플레이학회:학술대회논문집
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• 2008.10a
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• pp.1480-1483
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• 2008

How one can see that a nematic is indeed biaxial ? I consider some macroscopic effects in the basic biaxial cells and present results of the recent observation of the macroscopic biaxiality in the bent-core mesogens "C7" and "C12" [1,2].

• Proceedings of the Optical Society of Korea Conference
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• 2007.02a
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• pp.297-298
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• 2007

• Proceedings of the Optical Society of Korea Conference
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• 2007.07a
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• pp.127-128
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• 2007

• 한국정보디스플레이학회:학술대회논문집
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• 2000.01a
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• pp.45-46
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• 2000

• Proceedings of the Optical Society of Korea Conference
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• 2001.08a
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• pp.82-83
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• 2001

• Journal of the Korean Chemical Society
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• v.37 no.12
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• pp.1076-1079
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• 1993

• Proceedings of the Optical Society of Korea Conference
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• 2008.02a
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• pp.379-380
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• 2008