Abstract
Crystalline structures and thermal properties of poly(ethylene-co-α ,ω-nonconjugated diene)s, [diene = 1,5-hexadiene (HD), 1,7-octadiene (OD), and 1,9-decadiene (DD)] have been investigated in relation to insertion mode of the dienes. In the case of poly(ethylene-co-HD), the copolymer containing high cis-1,3-cyclopentane units shows lower melting point depression with increasing the comonomer content than the copolymers containing high trans-1,3-cyclopentane units. In the case of poly(ethylene-co-OD) and poly(ethylene-co-DD), the copolymers containing pendant vinyl groups show higher ΔHm than that of the copolymers with cyclic units or branching structures. Thermal degradation of the copolymers has been investigated under nitrogen atmosphere and the degradation of the copolymers containing the cyclic structures begins at lower temperature than the copolymers containing pendant vinyl groups.
| Original language | English |
|---|---|
| Pages (from-to) | 117-124 |
| Number of pages | 8 |
| Journal | Polymer |
| Volume | 45 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2004 Jan 1 |
| Externally published | Yes |
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Keywords
- Crystalline structure
- Ethylene/α,ω-nonconjugated diene copolymer
- Thermal property
ASJC Scopus subject areas
- Organic Chemistry
- Polymers and Plastics
Cite this
Crystalline structures and thermal properties of poly(ethylene-co-α ,ω-nonconjugated diene)s prepared by zirconocene catalysts. / Naga, Naofumi; Okada, Shinji; Imanishi, Yukio.
In: Polymer, Vol. 45, No. 1, 01.01.2004, p. 117-124.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Crystalline structures and thermal properties of poly(ethylene-co-α ,ω-nonconjugated diene)s prepared by zirconocene catalysts
AU - Naga, Naofumi
AU - Okada, Shinji
AU - Imanishi, Yukio
PY - 2004/1/1
Y1 - 2004/1/1
N2 - Crystalline structures and thermal properties of poly(ethylene-co-α ,ω-nonconjugated diene)s, [diene = 1,5-hexadiene (HD), 1,7-octadiene (OD), and 1,9-decadiene (DD)] have been investigated in relation to insertion mode of the dienes. In the case of poly(ethylene-co-HD), the copolymer containing high cis-1,3-cyclopentane units shows lower melting point depression with increasing the comonomer content than the copolymers containing high trans-1,3-cyclopentane units. In the case of poly(ethylene-co-OD) and poly(ethylene-co-DD), the copolymers containing pendant vinyl groups show higher ΔHm than that of the copolymers with cyclic units or branching structures. Thermal degradation of the copolymers has been investigated under nitrogen atmosphere and the degradation of the copolymers containing the cyclic structures begins at lower temperature than the copolymers containing pendant vinyl groups.
AB - Crystalline structures and thermal properties of poly(ethylene-co-α ,ω-nonconjugated diene)s, [diene = 1,5-hexadiene (HD), 1,7-octadiene (OD), and 1,9-decadiene (DD)] have been investigated in relation to insertion mode of the dienes. In the case of poly(ethylene-co-HD), the copolymer containing high cis-1,3-cyclopentane units shows lower melting point depression with increasing the comonomer content than the copolymers containing high trans-1,3-cyclopentane units. In the case of poly(ethylene-co-OD) and poly(ethylene-co-DD), the copolymers containing pendant vinyl groups show higher ΔHm than that of the copolymers with cyclic units or branching structures. Thermal degradation of the copolymers has been investigated under nitrogen atmosphere and the degradation of the copolymers containing the cyclic structures begins at lower temperature than the copolymers containing pendant vinyl groups.
KW - Crystalline structure
KW - Ethylene/α,ω-nonconjugated diene copolymer
KW - Thermal property
UR - http://www.scopus.com/inward/record.url?scp=0346788717&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0346788717&partnerID=8YFLogxK
U2 - 10.1016/j.polymer.2003.10.096
DO - 10.1016/j.polymer.2003.10.096
M3 - Article
AN - SCOPUS:0346788717
VL - 45
SP - 117
EP - 124
JO - Polymer (United Kingdom)
JF - Polymer (United Kingdom)
SN - 0032-3861
IS - 1
ER -