Publication:
Assessment of crosslink network and network defects of unfilled and filled ethylene-propylene-diene terpolymer using solid state nuclear magnetic relaxation spectroscopy

Issued Date

2017-01-20

Resource Type

Article

ISSN

10974628
00218995

DOI

10.1002/app.44224

Other identifier(s)

2-s2.0-84992451640

Rights

Mahidol University

Rights Holder(s)

SCOPUS

Bibliographic Citation

Journal of Applied Polymer Science. Vol.134, No.4 (2017)

Suggested Citation

Thanisararat Saleesung, Pongdhorn Saeoui, Chakrit Sirisinha Assessment of crosslink network and network defects of unfilled and filled ethylene-propylene-diene terpolymer using solid state nuclear magnetic relaxation spectroscopy. Journal of Applied Polymer Science. Vol.134, No.4 (2017). doi:10.1002/app.44224 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/42229

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Title

Assessment of crosslink network and network defects of unfilled and filled ethylene-propylene-diene terpolymer using solid state nuclear magnetic relaxation spectroscopy

Author(s)

Thanisararat Saleesung
 Pongdhorn Saeoui
 Chakrit Sirisinha

Other Contributor(s)

Mahidol University
 National Science Technology Development Agency

Abstract

© 2016 Wiley Periodicals, Inc. Reinforced rubbers are complex compared to unfilled systems. There are differences in the mechanisms affecting network molecular structure as well as properties of the rubber materials. In this article investigation of crosslink network and untied network defects on a molecular level of unfilled and carbon black filled ethylene-propylene-diene terpolymer was carried out using proton solid-state double-quantum NMR spectroscopy. The results show that the filled system demonstrates lower cure efficiency in conjunction with more noncoupled network defects than the unfilled one. In addition, the filled system yields the greater spatial heterogeneity because of the localization of the free radicals at the rubber–filler boundary. These strongly influence the mechanical properties of the filled rubber. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44224.

Keyword(s)

Chemistry

Availability

URI

https://repository.li.mahidol.ac.th/handle/20.500.14594/42229

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Scopus 2016-2017