[신간의 별자리x] 우리/미술, 그리고 ‘슬픔의 박물관’

Atom transfer radical polymerization.

New polymer synthesis by nitroxide mediated living radical polymerizations.

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Aryl-aryl bond formation one century after the discovery of the Ullmann reaction.

Metal-catalyzed living radical polymerization.

Discotic liquid crystals 45 years later. Dendronized discs and crowns increase liquid crystal complexity to columnar from spheres, cubic Frank-Kasper, liquid quasicrystals and memory-effect induced columnar-bundles

Intramolecular charge transfer complexes. 16. Copolymers of N,N‐dimethyl‐p‐aminobenzyl methacrylate with acryloyl‐ and methacryloyl‐β‐hydroxyethyl‐3,5‐dinitrobenzoate

A number of interesting thermotropic mesophases and transitions occur in main-chain polyethers and copolyethers based on aliphatic spacers and various semi-flexible mesogens of the general 1-(4'-hydroxyphenyl)-2-(2-R-4-hydroxyphenyl)ethane (RBPE) or 1-(4'-hydroxybiphenyl-4-yl)-2-(4-hydroxyphenyl)propane (TPP) type. The unusual effects described here are (i) nematic-nematic transition, (ii) smectic-B (crystal-B) phase and its shear-induced orientation, (iii) calamitic columnar phase, and (iv) nematic-columnar phase sequence.

Nematic, smectic and columnar phases of main‐chain liquid crystal polyethers

On a etudie la stabilite thermique de certains polymeres non satures de la classe des polyacetylenes, tels que polyphenylacetylene, poly-para-chlorophenylacetylene et poly-para-metylphenylacetylene, par les methodes de l'analyse thermique. On a determine les parametres cinetiques des reactions de destruction thermique tels que l'energie d'activation et l'ordre de reaction en utilisant la methode de calcul de Freeman et Carroll. Les polymeres ont ete synthetises par le procede de la polymerisation photochimique, ionique-coordinative et par polycondensation. On a etudie les fractions solubles ainsi que celles qui sont insolubles.

Recherches sur la polymerisation des derives acetyleniques

The synthesis and Ni(0) catalyzed homocoupling polymerization of 4,4′-bis[5-(trifluoromethanesulfonyloxy)-2-biphenylyl]-1, 1′-binaphthyl (9) are described. This polymerization reaction produces a soluble polyarylene containing alternating 4,4′-(1,1′-binaphthyl) and 4,4′-(3,3′-diphenyl)biphenyl structural units.

Virgil Percec

Papers

Discotic liquid crystals 45 years later. Dendronized discs and crowns increase liquid crystal complexity to columnar from spheres, cubic Frank-Kasper, liquid quasicrystals and memory-effect induced columnar-bundles

Intramolecular charge transfer complexes. 16. Copolymers of N,N‐dimethyl‐p‐aminobenzyl methacrylate with acryloyl‐ and methacryloyl‐β‐hydroxyethyl‐3,5‐dinitrobenzoate

Nematic, smectic and columnar phases of main‐chain liquid crystal polyethers

Recherches sur la polymerisation des derives acetyleniques

Synthesis of soluble polyarylenes containing alternating 4,4′-(1,1′-binaphthyl) and 4,4′-(3,3′-diphenyl)biphenyl structural units