• Journal of the Korean Chemical Society
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• v.49 no.3
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• pp.247-254
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• 2005

• Proceedings of the Korean Fiber Society Conference
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• 2003.10a
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• pp.102-102
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• 2003

TLCP/polyester composite fibers (TPCFs) based on melt blends of PEN, PET, and TLCP were prepared by melt blending and spinning process to achieve high performance fibers. Reinforcement effect and TLCP fibrillar structure resulted in improvement of mechanical properties for TPCFs. The increase in the apparent crystallite size was attributed to the development of larger crystallites and more ordered crystalline structures in the annealed TPCFs. Molecular orientation was an important factor to determine mechanical property of TPCFs.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 1998.11a
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• pp.133-136
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• 1998

The scanning Maxwell-stress microscopy (SMM) is a dynamic noncontact electric force microscopy that allows simultaneous access to the electrical properties of molecular system such as surface potential, surface charge, dielectric constant and conductivity along with the topography. Here we report our recent results of its application to nanoscopic study of domain structures and electrical functionality in organic thin films prepared by the Langmuir-Blodgett technique.

• Proceedings of the PSK Conference
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• 2002.10a
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• pp.179-180
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• 2002

The phospholipase $A_2$($PLA_2$) family represents a diverse group of enzymes that hydrolyze sn-2 fatty acid from the cell membrane. Several mammalian cytosolic $PLA_2$ and secretory $PLA_2$(s$PLA_2$) have been characterized and classified into different families. At present, 12 distinct sPLA$_2$s have been identified in mammals and classified into different groups, depending on their primary structures as characterized by the number and position of cysteine residues. (omitted)

• Bulletin of the Korean Chemical Society
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• v.32 no.9
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• pp.3306-3310
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• 2011

A series of novel linear aromatic ether ketone polymers containing triazole units were synthesized by click chemistry and their structures and properties were characterized by FT-IR, $^1H$ NMR, GPC, TGA, DSC and WAXD. The results showed that these polymers exhibited relatively small molecular weights distributions, good thermal stability and solvent-repelling which could have potential applications as engineering thermoplastic.

• Proceedings of the Korean Fiber Society Conference
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• 1998.04a
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• pp.1-4
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• 1998

Segmented Polyurethanes Elastomers are a class of polymers having interesting properties which arise from their unique phase-separated structures resulting from the thermodynamic incompatibility of the ingredients[1]. Segmented polyurethane Elastomer generally consists of a segment derived from a polymeric diol and a hard segment from a diisocyanate and a low molecular weight diol(chain extender).(omitted)

• 한국정보디스플레이학회:학술대회논문집
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• 2008.10a
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• pp.1247-1250
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• 2008

This presentation highlights work from the authors' laboratories on the various kinds of oxide optical materials, mainly luminescence and pigment materials with different forms (powder, core-shell structures, thin film and patterning) prepared by the Pechini-type sol-gel (PSG) process. The PSG process which uses the common metal salts (nitrates, acetates, chlorides etc) as precursors and citric acid (CA) as chelating ligands of metal ions and polyhydroxy alcohol (such as ethylene glycol or poly ethylene glycol) as cross-linking agent to form a polymeric resin on molecular level, allowing the preparation of many forms of luminescent materials.

• 한국정보디스플레이학회:학술대회논문집
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• 2003.07a
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• pp.520-523
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• 2003

We used three types of reactive diluents with different chemical structures, N-vinyl-pyrrollidone(NVP), ethyl hexyl acrylate(EHA) and hydroxyehtyl methacrylate(HEMA). It was founded that N-vinylpyrrollidone(NVP) and ethyl hexyl acrylate(EHA) based PUA with low molecular weight polypropylene glycol(PPG) at low oligomer content give high diffraction efficiency. The morphology of the resultant gratings was analyzed by using scanning electron microscopy(SEM) and Tg of the polymer matrix by dynamic mechanical thermal analysis(DMTA).

• Proceedings of the Korean Society of Machine Tool Engineers Conference
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• 1998.10a
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• pp.97.1-100
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• 1998

We studied on the ultra thin L- $\alpha$ -DLPC by LB method. The $\pi$ -A isotherm of the L- e -DLPC was measured at the air-water interface varying with the compressing speed and amounts of solutions for spreading. The molecular arrangement of deposited films were evaluated by measuring the absorption with the UV spectrometer. And we made structures of metal(Au)/L- $\alpha$ -DLPC/Metal(Au) and examined electron through L- $\alpha$ -DLPC LB films by means of current-voltage(I- V) measurement

• Proceedings of the Korean Society of Developmental Biology Conference
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• 2004.07a
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• pp.34-35
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• 2004