Dynamic-Mechanical Properties and Cross-Polarized, Proton-Enhanced, Magic Angle Spinning13C NMR Time Constants of Poly[oligo(ethylene glycol) dimethacrylates]

P. E.M. Allen, G. P. Simon, D. R.G. Allen Williams, E. H. Williams

Research output: Contribution to journalArticleResearchpeer-review

33 Citations (Scopus)

Abstract

Dynamic-mechanical and fracture properties and proton-enhanced, magic angle spinning13C NMR time constants for polymers of the CH2=C(CH3)CO(OCH2CH2)xOCOC(CH3)=CH2 series (x = 1 to jc = 22) and poly[tetrakis(ethylene glycol) diacrylate] have been measured. The effects of increasing length of the soft oxyethylene chain, Jc, undercure (x = 1–4), and oxyethylene crystallization (x = 22) were observed. The results are interpreted in terms of the contributions of components of group motion to the cooperative motion of segments of the network which control the response to a macroscopic deformation.

Original languageEnglish
Pages (from-to)809-816
Number of pages8
JournalMacromolecules
Volume22
Issue number2
DOIs
Publication statusPublished - 1 Mar 1989
Externally publishedYes

Cite this