Functional polymers for colloidal applications. X. Syntheses of graft-charged naphthalene-formaldehyde condensates and their ability to disperse dyes

Ping Lin Kuo, Wein Hsiang Chen, Chen Cheng Wu

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

N-(3-sodium propylsulfonate)-α-naphthylamine-formaldehyde condensates (NAFS) and O-(3-propylsulfonate)-α-naphthol-formaldehyde condensates (NOFS) are synthesized by condensation reactions followed by ring-opening reactions. Those condensates are used as dispersants to disperse dyes in water (C.I. Navy Blue 79 and C.I. Brown 1), and can be compared to the conventional dispersants [e.g., naphthalenesulfonate-formaldehyde condensates (NSF)]. The dispersing properties of the condensates were evaluated by scanning electron microscopy (SEM), sedimentation, as well as measurments of viscosity. For NAFS or NOFS, the sulfonate groups were grafted separately on the backbone of the condensate; however, for NSF, the sulfonate groups were anchored on the backbone of the condensate. The structural effects of those condensates were demonstrated by comparing the dispersing ability of these condensates, and the conventional condensates NAFS and NOFS exhibit better dispersing abilities than NSF for the Navy Blue 79 and Brown 1 dyes.

Original languageEnglish
Pages (from-to)815-823
Number of pages9
JournalJournal of Applied Polymer Science
Volume60
Issue number6
DOIs
Publication statusPublished - 1996 May 9

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Functional polymers for colloidal applications. X. Syntheses of graft-charged naphthalene-formaldehyde condensates and their ability to disperse dyes'. Together they form a unique fingerprint.

Cite this