Solution copolymerization of D-lactose-O-(p-vinylbenzyl)-hydroxime with acrylonitrile

Weiping Lin, You Lo Hsieh, David Warganich, Wen Jing Zhou, Mark J. Kurth, John M. Krochta

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

Copolymerization of D-lactose-O-(p-vinylbenzyl)-hydroxime (LVH), a new vinyl monomer, with acrylonitrile (AN) was performed in DMSO with AIBN as the initiator. The conversion of LVH is much faster than that of AN and reaches 100% in 2 h. The reactivity ratios of LVH and AN, as determined by the extended Kelen-Tüdös method, are 1.0975 and 0.0554, respectively. Increasing the proportion of LVH in the monomer mixture significantly increases the LVH content in the copolymer. The conversion of monomers and the AN content in the copolymer rise gradually with increasing reaction time and initiator concentration. The number average molecular weights of the copolymers are independent of the monomer feed ratios. The LVH-co-AN copolymers exhibit lower glass transition temperatures than PLVH homopolymer. The presence of small amounts of LVH in the copolymer chain reduce the cyclization of nitrile groups in AN segments of the copolymer. Complete disappearance of nitrile cyclization is observed when the contents of LVH reaches and exceeds 16.9%.

Original languageEnglish (US)
Pages (from-to)4911-4914
Number of pages4
JournalPolymer
Volume39
Issue number20
StatePublished - Sep 1998

Keywords

  • Copolymer
  • D-lactose-O-(p-vinylbenzyl)-hydroxime (lVH)
  • Lactose moiety

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics

Fingerprint Dive into the research topics of 'Solution copolymerization of D-lactose-O-(p-vinylbenzyl)-hydroxime with acrylonitrile'. Together they form a unique fingerprint.

  • Cite this

    Lin, W., Hsieh, Y. L., Warganich, D., Zhou, W. J., Kurth, M. J., & Krochta, J. M. (1998). Solution copolymerization of D-lactose-O-(p-vinylbenzyl)-hydroxime with acrylonitrile. Polymer, 39(20), 4911-4914.