Synthesis of telechelic methacrylate oligomers with carboxyl ends through radical polymerization-chemical modification

Pinggui Liu, Heyan Ding, Junneng Liu, Xiaosu Yi

Research output: Journal PublicationArticlepeer-review

12 Citations (Scopus)

Abstract

A new method used to obtain α,ω-carboxyl terminated oligo(butyl methacrylate) (di-CTBMA) is introduced in this paper, which combines a conventional solution free-radical polymerization and a chemical modification, i.e. saponification. Here, a ω-carboxyl terminated oligo(butyl methacrylate) (CTBMA) is firstly synthesized by a solution polymerization in tetrahydrofuran, where 4,4′-azobis(4-cyanovaleric acid) is used as radical initiator, and thioglycolic acid as chain transfer agent. Then, CTBMA is transferred into di-CTBMA via saponifying CTBMA in an organic solvent/H2O/KOH solution. The influence of important reaction parameters, such as the type of organic solvent and reaction time are studied by acid-base titration and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry analysis. It is experimentally shown that a saponified CTBMA with a functionality of about two, i.e. di-CTBMA could be obtained under a certain experimental condition.

Original languageEnglish
Pages (from-to)1783-1789
Number of pages7
JournalEuropean Polymer Journal
Volume38
Issue number9
DOIs
Publication statusPublished - Sep 2002
Externally publishedYes

Keywords

  • Free-radical polymerization
  • Functionality
  • Oligo(butyl methacrylate)
  • Saponification

ASJC Scopus subject areas

  • Physics and Astronomy (all)
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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