• Bulletin of the Korean Chemical Society
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• 제29권12호
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• pp.2383-2389
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• 2008

• Bulletin of the Korean Chemical Society
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• 제33권12호
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• pp.4251-4254
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• 2012

• Bulletin of the Korean Chemical Society
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• 제33권4호
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• pp.1349-1352
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• 2012

• Bulletin of the Korean Chemical Society
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• 제27권1호
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• pp.137-139
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• 2006

• 대한화학회지
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• 제46권5호
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• pp.484-488
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• 2002

• 한국고분자학회:학술대회논문집
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• 한국고분자학회 2006년도 IUPAC International Symposium on Advanced Polymers for Emerging Technologies
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• pp.326-326
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• 2006

The combination of living anionic and coordination polymerization techniques enabled to synthesize the polystyrene-b-polyisoprene-b-poly (butyl isocyanate) triblock polymers. Their microphase-separated structures were zig-zag structures for high ${\phi}_{PIC}$ samples, and hockey-puck structures were also observed. The phase diagram for PSt-b-PIp-b-PIC rod-coil polymers was different from that for PS-PBd-PMMA triblock polymers, and it was found that ${\phi}_{PIC}$ was the important factor to determine the microphase-separated structures.

• Bulletin of the Korean Chemical Society
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• 제28권3호
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• pp.421-426
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• 2007

A linking ligand containing sulfur donor atoms in the terminal thiophene rings, 1,2-bis(thiophen-2-ylmethylene) hydrazine (L), was prepared by Schiff-base condensation. Ligand L reacted with [PdCl2(NCPh)2] to produce a molecular Pd compound [PdL2Cl2] (1). On the other hand, it reacted with AgNO3 and AgClO4 to produce a 2-D network [AgL0.5(NO3)] (2) and a 1-D polymer [AgL]ClO4 (3), respectively, whose structures are based on secondary intermolecular forces such as H-bonding, van der Waals interaction, and π-π stacking. Polymer 2 exhibited photoluminescence at room temperature in the solid state.

• 한국결정학회지
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• 제14권1호
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• pp.39-43
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• 2003

The hydrothermal reaction of Co(NO₃)₂ㆍ6H₂O, trans-1,2-bis(4-pyridyl) ethylene (bipyen), and a bent 4,4'-oxybis(benzoic acid) (OBCH₂) gave a 2-D coordination polymer [Co(OBC)(bipyen)]ㆍH₂O(1). X-ray structure determination revealed that polymer 1 has a 2-D network based on 50-membered rectangular grids, each of which has the dimension of 13.74×13.20Å.

• 분석과학
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• 제14권6호
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• pp.535-539
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• 2001

One-dimensional coordination polymer of cadmium(II) complex, $[Cd(SCN)_2(C_4H_6N_2]_n$, has been prepared and characterized by X-ray single crystallography. Structure analysis reveals that each cadmium(II) atom is six-coordinated in distorted octahedral fashion with $CdS_2N_4$ composition. $CdS_2N_4$ composition contains two S and two N atoms from four thiocyanates and tow N atoms from two 4-methylimidazole ligands. Central cadmium(II) atoms are run in parallel to the a-axis and are doubly bridged with neighboring cadmium(II) atoms by the thiocyanate and isothiocyanate ligands. Thus, this complex has a one-dimensional polymer structure in which the 4-methylimidazole is in the trans conformation.

• Bulletin of the Korean Chemical Society
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• 제13권3호
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• pp.274-279
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• 1992

Immobilization method of lariat azacrown ethers, containing hydroxyl group in the side arm of crown ring, on the polymer matrix and the phase-transfer catalytic activity of thus obtained immobilized lariat azacrown ethers were studied. Polystyrene resins with crown ether structures and hydroxyl groups adjacent to the macrorings were prepared by the reaction of crosslinked polystyrene resins containing epoxy groups with monoaza-15-crown-5 or monoaza-18-crown-6. Microporous crosslinked polystyrene resins containing epoxy group for the syntheses of these immobilized lariat crown catalysts were prepared by suspension polymerization of styrene, divinylbenzene (DVB 2%) and vinylbenzylglycidyl ether. The immobilized lariat catalysts with 10-20% ring substitution exhibited maximal activity for the halogen exchange reactions of 1-bromooctane with aqueous KI or NaI under triphase heterogeneous conditions. Immobilized catalyst exhibited higher activity than corresponding catalyst without the hydroxyl group and this result was suggested that the active site have a structure in which the $K^+$ ion was bound by the cooperative coordination of the crown ring donors and the hydroxyl group in the side arm.