Chain extension of ketonic resins


Kizilcan N., Akar A.

MACROMOLECULAR SYMPOSIA, vol.122, pp.349-354, 1997 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 122
  • Publication Date: 1997
  • Doi Number: 10.1002/masy.19971220154
  • Journal Name: MACROMOLECULAR SYMPOSIA
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.349-354

Abstract

Chain extensions of cyclohexanone-formaldehyde (CF) and acetophenone-formaldehyde (AF) resins via their hydroxyl groups were studied. The chain extension was regulated by the ratio of hydroxyl groups/reactive reagents. Dimethyl dichlorosilane, phosphorus oxychloride, toluene-2,4-diisocyanate, phthalic anhydride, tetrahydro phthalic anhydride, trimellitic anhydride, 4,4'-oxydiphthalic anhydride were used as chain extender reagent. It has been shown that solubilites, melting point and molecular weight of extended resins depended upon the characteristics of chain extender reagents.