A spectroscopic and quantitative characterization of various fractions of the heterogeneous polymer system (EPDM-g-maleic anhydride)-g-polyamide 66 using high resolution 13C solid state NMR and IR techniques
✍ Scribed by G. van der Velden; H. Nelissen; T. Veermans
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 949 KB
- Volume
- 47
- Category
- Article
- ISSN
- 0323-7648
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✦ Synopsis
The structure of EPDM grafted onto polyamide 66 has been analyzed with high resolution solid state I3C NMR and IR spectroscopy. Details about the EPDM rubber include the amount of rubber incorporated in this blend, the sequence analysis of the EPDM rubber and an estimate of the type and amount of termonomer used (in this case only trans 1.4-hexadiene). The sample contains 20% EPDM rubber, 6% polyamide 66 grafted onto EPDM rubber and 74% neat polyamide 66. Some evidence has been obtained via IR spectroscopy for the presence of cyclic imide groups, derived from grafted maleic anhydride groupings. No evidence for the use of a coupling agent could be obtained from either the 13C SPE-MAS spectra of the interphase enhanced polyamide 66 or from the isolated rubber phase.