2H-NMR studies on uniaxially drawn ultrahigh molecular weight polyethylene

H. Deckmann; M. Möller; L.E. Govaert; P.J. Lemstra

2H-NMR studies on uniaxially drawn ultrahigh molecular weight polyethylene

H. Deckmann, M. Möller, L.E. Govaert, P.J. Lemstra

Processing and Performance

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

2 Downloads (Pure)

Abstract

2H-NMR expereiments were performed on deuterated, gel-drawn ultrahigh molecular weight polyethylene in order to obtain information about the orientational distribution and the molecular mobility. An increase of the spinlattice relaxation time by about an order of magnitude was observed in comparison to melt crystallized polyethylene indicating high perfection of the fibrillar crystallites. Beside the 2H-NMR resonance for a highly ordered rigid component (orthorhmobic or monoclinic fibrillar crystallites) a highly oriented mobile and a little oriented mobile component was observed. The latter can be assigned to constrained noncrystalline chain segments. saturation-spin echo pulse experiments showed a continuous transition in the T1 time of the oriented components. Variations in the line shape can be explained by a dynamic equilibrium of all-trans conormations and

Original language	English
Title of host publication	Proceedings of the International Meeting on Polymer Science and Technology, Rolduc Polymer Meeting-5, Held at Rolduc Abbey, Limburg, the Netherlands, 29 April - 3 May, 1990
Editors	P.J. Lemstra, L.A. Kleintjens
Place of Publication	London
Publisher	Elsevier Applied Science Publishers
Pages	276-290
ISBN (Print)	1-85166-587-0
Publication status	Published - 1991
Event	conference; International Meeting on Polymer Science and Technology; 1990-04-29; 1990-05-03 - Duration: 29 Apr 1990 → 3 May 1990

Conference

Conference	conference; International Meeting on Polymer Science and Technology; 1990-04-29; 1990-05-03
Period	29/04/90 → 3/05/90
Other	International Meeting on Polymer Science and Technology

Cite this

Deckmann, H., Möller, M., Govaert, L. E., & Lemstra, P. J. (1991). 2H-NMR studies on uniaxially drawn ultrahigh molecular weight polyethylene. In P. J. Lemstra, & L. A. Kleintjens (Eds.), Proceedings of the International Meeting on Polymer Science and Technology, Rolduc Polymer Meeting-5, Held at Rolduc Abbey, Limburg, the Netherlands, 29 April - 3 May, 1990 (pp. 276-290). Elsevier Applied Science Publishers.

Deckmann, H. ; Möller, M. ; Govaert, L.E. et al. / 2H-NMR studies on uniaxially drawn ultrahigh molecular weight polyethylene. Proceedings of the International Meeting on Polymer Science and Technology, Rolduc Polymer Meeting-5, Held at Rolduc Abbey, Limburg, the Netherlands, 29 April - 3 May, 1990. editor / P.J. Lemstra ; L.A. Kleintjens. London : Elsevier Applied Science Publishers, 1991. pp. 276-290

@inproceedings{99fd84ccf8784c40a047e738431ff0e1,

title = "2H-NMR studies on uniaxially drawn ultrahigh molecular weight polyethylene",

abstract = "2H-NMR expereiments were performed on deuterated, gel-drawn ultrahigh molecular weight polyethylene in order to obtain information about the orientational distribution and the molecular mobility. An increase of the spinlattice relaxation time by about an order of magnitude was observed in comparison to melt crystallized polyethylene indicating high perfection of the fibrillar crystallites. Beside the 2H-NMR resonance for a highly ordered rigid component (orthorhmobic or monoclinic fibrillar crystallites) a highly oriented mobile and a little oriented mobile component was observed. The latter can be assigned to constrained noncrystalline chain segments. saturation-spin echo pulse experiments showed a continuous transition in the T1 time of the oriented components. Variations in the line shape can be explained by a dynamic equilibrium of all-trans conormations and",

author = "H. Deckmann and M. M{\"o}ller and L.E. Govaert and P.J. Lemstra",

year = "1991",

language = "English",

isbn = "1-85166-587-0",

pages = "276--290",

editor = "P.J. Lemstra and L.A. Kleintjens",

booktitle = "Proceedings of the International Meeting on Polymer Science and Technology, Rolduc Polymer Meeting-5, Held at Rolduc Abbey, Limburg, the Netherlands, 29 April - 3 May, 1990",

publisher = "Elsevier Applied Science Publishers",

note = "conference; International Meeting on Polymer Science and Technology; 1990-04-29; 1990-05-03 ; Conference date: 29-04-1990 Through 03-05-1990",

}

Deckmann, H, Möller, M, Govaert, LE & Lemstra, PJ 1991, 2H-NMR studies on uniaxially drawn ultrahigh molecular weight polyethylene. in PJ Lemstra & LA Kleintjens (eds), Proceedings of the International Meeting on Polymer Science and Technology, Rolduc Polymer Meeting-5, Held at Rolduc Abbey, Limburg, the Netherlands, 29 April - 3 May, 1990. Elsevier Applied Science Publishers, London, pp. 276-290, conference; International Meeting on Polymer Science and Technology; 1990-04-29; 1990-05-03, 29/04/90.

2H-NMR studies on uniaxially drawn ultrahigh molecular weight polyethylene. / Deckmann, H.; Möller, M.; Govaert, L.E. et al.
Proceedings of the International Meeting on Polymer Science and Technology, Rolduc Polymer Meeting-5, Held at Rolduc Abbey, Limburg, the Netherlands, 29 April - 3 May, 1990. ed. / P.J. Lemstra; L.A. Kleintjens. London: Elsevier Applied Science Publishers, 1991. p. 276-290.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - 2H-NMR studies on uniaxially drawn ultrahigh molecular weight polyethylene

AU - Deckmann, H.

AU - Möller, M.

AU - Govaert, L.E.

AU - Lemstra, P.J.

PY - 1991

Y1 - 1991

N2 - 2H-NMR expereiments were performed on deuterated, gel-drawn ultrahigh molecular weight polyethylene in order to obtain information about the orientational distribution and the molecular mobility. An increase of the spinlattice relaxation time by about an order of magnitude was observed in comparison to melt crystallized polyethylene indicating high perfection of the fibrillar crystallites. Beside the 2H-NMR resonance for a highly ordered rigid component (orthorhmobic or monoclinic fibrillar crystallites) a highly oriented mobile and a little oriented mobile component was observed. The latter can be assigned to constrained noncrystalline chain segments. saturation-spin echo pulse experiments showed a continuous transition in the T1 time of the oriented components. Variations in the line shape can be explained by a dynamic equilibrium of all-trans conormations and

AB - 2H-NMR expereiments were performed on deuterated, gel-drawn ultrahigh molecular weight polyethylene in order to obtain information about the orientational distribution and the molecular mobility. An increase of the spinlattice relaxation time by about an order of magnitude was observed in comparison to melt crystallized polyethylene indicating high perfection of the fibrillar crystallites. Beside the 2H-NMR resonance for a highly ordered rigid component (orthorhmobic or monoclinic fibrillar crystallites) a highly oriented mobile and a little oriented mobile component was observed. The latter can be assigned to constrained noncrystalline chain segments. saturation-spin echo pulse experiments showed a continuous transition in the T1 time of the oriented components. Variations in the line shape can be explained by a dynamic equilibrium of all-trans conormations and

M3 - Conference contribution

SN - 1-85166-587-0

SP - 276

EP - 290

BT - Proceedings of the International Meeting on Polymer Science and Technology, Rolduc Polymer Meeting-5, Held at Rolduc Abbey, Limburg, the Netherlands, 29 April - 3 May, 1990

A2 - Lemstra, P.J.

A2 - Kleintjens, L.A.

PB - Elsevier Applied Science Publishers

CY - London

T2 - conference; International Meeting on Polymer Science and Technology; 1990-04-29; 1990-05-03

Y2 - 29 April 1990 through 3 May 1990

ER -

Deckmann H, Möller M, Govaert LE, Lemstra PJ. 2H-NMR studies on uniaxially drawn ultrahigh molecular weight polyethylene. In Lemstra PJ, Kleintjens LA, editors, Proceedings of the International Meeting on Polymer Science and Technology, Rolduc Polymer Meeting-5, Held at Rolduc Abbey, Limburg, the Netherlands, 29 April - 3 May, 1990. London: Elsevier Applied Science Publishers. 1991. p. 276-290

2H-NMR studies on uniaxially drawn ultrahigh molecular weight polyethylene

Abstract

Conference

Fingerprint

Cite this