期刊
POLYMER
卷 48, 期 11, 页码 3026-3032出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2007.04.014
关键词
amino acid; norbornene; ROMP
Amino acid-derived novel norbornene diester derivatives, 5-norbornene-endo,endo-2,3-dicarboxylic acid bis((S)-2-N-(tert-butoxycarbonyl)aminopropyl) ester (1a), 5-norbomene-exo,exo-2,3-dicarboxylic acid bis((S)-2-N-(tert-butoxycarbonyl)aminopropyl) ester (1b), bis(N-alpha-(tertbutoxycarbonyl)-L-alanine) 5-norbomene-2,3-endo,endo-dimethyl ester (2a), bis(N-alpha-(tert-butoxycarbonyl)-L-alanine) 5-norbomene-2,3exo,exo-dimethyl ester (2b) were synthesized and polymerized by the Grubbs catalyst, 2nd generation. Ring-opening metathesis polymerization of the monomers satisfactorily proceeded to give the polymers with fairly high molecular weights in good yields. The polymerization rate was not affected by the stereostructure of the monomers, endo,endo- and exo,exo-, while largely affected by solvents. The order of polymerization rate was as follows: acetone-d(6) > benzene-d(6) > DMF-d(7) approximate to CD2Cl2 > CDCl3. (c) 2007 Elsevier Ltd. All rights reserved.
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