Poly(methacrylic acid)-l-polyisobutylene

A novel polyelectrolyte amphiphilic conetwork

Márton Haraszti, Edina Tóth, Béla Iván

Research output: Contribution to journalArticle

61 Citations (Scopus)

Abstract

For the first time, a reliable procedure for synthesizing new acidic polyelectrolyte-containing amphiphilic conetworks (APCNs), poly(methacrylic acid)-l-polyisobutylene (PMAA-l-PIB), is described. The thorough characterization of the synthesis products is also presented through elemental analysis, differential scanning calorimetry (DSC), and basic swelling studies. Three series of APCNs were successfully synthesized in wide composition ranges by the macromonomer method using exact bifunctional methacrylate-telechelic PIB cross-linkers (MA-PIB-MA) of three different molecular weights (Mn): 2000, 5000, and 13000. The MA-PIB-MA macromolecular cross-linkers were prepared via quasiliving carbocationic polymerization. To prevent phase separation and thus insufficient network formation during synthesis, the conetworks were synthesized by thermally initiated free radical copolymerization of MA-PIB-MA and trimethylsilyl methacrylate, a hydrophobized precursor of methacrylic acid. After the next critical synthetic step, the quantitative hydrolytic cleavage of the trimethylsilyl groups from the poly(trimethylsilyl methacrylate) chains in the resulting precursor conetworks, 5-8 different compositions of each PMAA-l-PIB conetwork series were obtained. The low amounts of extractables (

Original languageEnglish
Pages (from-to)4952-4958
Number of pages7
JournalChemistry of Materials
Volume18
Issue number20
DOIs
Publication statusPublished - Oct 3 2006

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Methacrylates
Polyelectrolytes
Acids
Chemical analysis
Free radicals
Phase separation
Copolymerization
Free Radicals
Swelling
Differential scanning calorimetry
Molecular weight
Polymerization
methacrylic acid
polyisobutylene

ASJC Scopus subject areas

  • Materials Chemistry
  • Materials Science(all)

Cite this

Poly(methacrylic acid)-l-polyisobutylene : A novel polyelectrolyte amphiphilic conetwork. / Haraszti, Márton; Tóth, Edina; Iván, Béla.

In: Chemistry of Materials, Vol. 18, No. 20, 03.10.2006, p. 4952-4958.

Research output: Contribution to journalArticle

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