Preparation, characterization, and application of poly(vinyl alcohol)-graft-poly(ethylene glycol) resins: Novel polymer matrices for solid-phase synthesis

Juntao Luo, Christophe Pardin, X. X. Zhu, William D. Lubell

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Spherical crosslinked polyvinyl alcohol) (PVA) beads with good mechanical stability were prepared by reverse-suspension polymerization, using dimethyl sulfoxide (DMSO) as a cosolvent in an aqueous phase. Poly(ethylene glycol)s with varying chain lengths were grafted onto the PVA beads by anionic polymerization of ethylene oxide. The thermal behavior, morphology, and swelling were evaluated for each of the new polymer matrices. High loading and good swelling in water and organic solvents were characteristic of the PEG-grafted PVA beads. The polymer beads also exhibited good mechanical and chemical stability and were unaffected by treatment with 6 N HCl and with 6 N NaOH. The hydroxyl groups of the PVA-PEG beads were converted into aldehyde, carboxylic acid, and isocyanate functions to provide scavenger resins and were extended by way of a benzyl alcohol in a Wang linker. The transglutaminase substrates dipeptides (Z-Gln-Gly) and heptapeptides (Pro-Asn-Pro-Gln-Leu-Pro-Phe) were synthesized on PVA-PEG_5, PVA-PEG_20, and the Wang linker-derivatized PVA-PEG resins. The cleavage of the peptides from the resins using MeOH/NH3 mixture at different temperatures (0°C and room temp) and 50% TFA/DCM provided, respectively, peptide methyl esters, amides, and acids in good yields and purity as assessed by LC-MS analysis.

Original languageEnglish (US)
Pages (from-to)582-591
Number of pages10
JournalJournal of Combinatorial Chemistry
Volume9
Issue number4
DOIs
StatePublished - Jul 2007
Externally publishedYes

Fingerprint

Solid-Phase Synthesis Techniques
Ethylene Glycol
Swelling
Ethylene
Polymerization
Alcohol
Polymer matrix
Grafts
Peptides
Polyethylene glycols
Preparation
Polymers
Resins
Alcohols
Synthesis
Benzyl Alcohol
Transplants
Isocyanates
Polyvinyl Alcohol
Ethylene Oxide

ASJC Scopus subject areas

  • Drug Discovery
  • Organic Chemistry
  • Chemistry(all)
  • Discrete Mathematics and Combinatorics

Cite this

Preparation, characterization, and application of poly(vinyl alcohol)-graft-poly(ethylene glycol) resins : Novel polymer matrices for solid-phase synthesis. / Luo, Juntao; Pardin, Christophe; Zhu, X. X.; Lubell, William D.

In: Journal of Combinatorial Chemistry, Vol. 9, No. 4, 07.2007, p. 582-591.

Research output: Contribution to journalArticle

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