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Ethylene-ethyl acrylate copolymers via ADMET polymerization: Effect of sequence distribution on thermal properties
Journal of polymer science. Part A, Polymer chemistry, 2013-07, Vol.51 (13), p.2900-2909
Li, Zi-Long
Li, Lei
Deng, Xin-Xing
Lv, An
Wang, Chun-Hao
Du, Fu-Sheng
Li, Zi-Chen
2013
Volltextzugriff (PDF)
Details
Autor(en) / Beteiligte
Li, Zi-Long
Li, Lei
Deng, Xin-Xing
Lv, An
Wang, Chun-Hao
Du, Fu-Sheng
Li, Zi-Chen
Titel
Ethylene-ethyl acrylate copolymers via ADMET polymerization: Effect of sequence distribution on thermal properties
Ist Teil von
Journal of polymer science. Part A, Polymer chemistry, 2013-07, Vol.51 (13), p.2900-2909
Ort / Verlag
Hoboken, NJ: Blackwell Publishing Ltd
Erscheinungsjahr
2013
Quelle
Wiley Online Library Journals Frontfile Complete
Beschreibungen/Notizen
ABSTRACT Copolymers of ethylene and ethyl acrylate have been widely used as commodity materials in many fields. In this article, a general synthetic strategy toward fine tuning the ethyl acrylate content and facile control over the monomer sequence regularity of this important type of copolymer via acyclic diene metathesis (ADMET) polymerization followed by hydrogenation is demonstrated. Three structurally symmetric diene monomers (M1–M3) were synthesized in good yields via a three‐step synthetic approach; each of the monomers contains two tail‐to‐tail linked ethyl acrylate units connected to the terminal alkenes by a methylene spacer with specific length. ADMET homopolymerization of M1–M3 and copolymerization of these monomers with 1,9‐decadiene were conducted, and after hydrogenation, a family of periodic and random copolymers of ethylene and ethyl acrylate were obtained. All the polymer samples were characterized by gel permeation chromatography and nuclear magnetic resonance, and the thermal properties of the saturated copolymers were investigated with thermal gravimetric analysis and differential scanning calorimetry. The glass transition and melting behaviors of this family of ethylene and ethyl acrylate copolymers were found to be dependent on the ethyl acrylate content and the primary structure regularity in copolymers. Copolymers with low ethyl acrylate content and periodic microstructures exhibited better crystallinity. © 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2013, 51, 2900–2909 Periodic and random ethylene‐ethyl acrylate copolymers are synthesized via acyclic diene metathesis copolymerization. Differential scanning calorimetry results indicate that copolymers with low ethyl acrylate content and regular primary structure exhibit better crystallinity.
Sprache
Englisch
Identifikatoren
ISSN: 0887-624X
eISSN: 1099-0518
DOI: 10.1002/pola.26682
Titel-ID: cdi_proquest_miscellaneous_1439742498
Format
–
Schlagworte
Acrylates
,
acyclic diene metathesis
,
Applied sciences
,
copolymer
,
copolymerization
,
Copolymers
,
Decomposition reactions
,
Dienes
,
ethyl acrylate
,
Ethylene
,
Exact sciences and technology
,
metathesis
,
Monomers
,
Organic polymers
,
Physicochemistry of polymers
,
polyethylene (PE)
,
Polymerization
,
Preparation, kinetics, thermodynamics, mechanism and catalysts
,
sequence
,
Thermal properties
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