Do MELT or CONTIN programs accurately reveal the o-Ps lifetime distribution in polymers? II. Semicrystalline polymers

G. Dlubek; Ch Hübner; S. Eichler

doi:10.1002/(SICI)1521-396X(199904)172:2<303::AID-PSSA303>3.0.CO;2-C

Do MELT or CONTIN programs accurately reveal the o-Ps lifetime distribution in polymers? II. Semicrystalline polymers

G. Dlubek^*, Ch Hübner, S. Eichler

^*Corresponding author for this work

Institute of Physics

8 Citations (Scopus)

Abstract

Positron lifetime experiments of high statistical accuracy were performed for various polyethylene samples with different degrees of crystallinity (X_c = 43, 60, and 70%). Four lifetime components were resolved using the MELT, CONTIN or the discrete-term LIFSPECFIT routines. Two long-lived components appeared, their lifetimes and intensities varied systematically with X_c. τ₄ arose from o-Ps annihilation in holes of the amorphous phase while τ₃ may be attributed to crystals.

Original language	English
Journal	Physica Status Solidi (A) Applied Research
Volume	172
Issue number	2
Pages (from-to)	303-315
Number of pages	13
ISSN	0031-8965
DOIs	https://doi.org/10.1002/(SICI)1521-396X(199904)172:2<303::AID-PSSA303>3.0.CO;2-C
Publication status	Published - 01.04.1999

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10.1002/(SICI)1521-396X(199904)172:2<303::AID-PSSA303>3.0.CO;2-C

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abstract = "Positron lifetime experiments of high statistical accuracy were performed for various polyethylene samples with different degrees of crystallinity (Xc = 43, 60, and 70\%). Four lifetime components were resolved using the MELT, CONTIN or the discrete-term LIFSPECFIT routines. Two long-lived components appeared, their lifetimes and intensities varied systematically with Xc. τ4 arose from o-Ps annihilation in holes of the amorphous phase while τ3 may be attributed to crystals.",

author = "G. Dlubek and Ch H{\"u}bner and S. Eichler",

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T1 - Do MELT or CONTIN programs accurately reveal the o-Ps lifetime distribution in polymers? II. Semicrystalline polymers

AU - Dlubek, G.

AU - Hübner, Ch

AU - Eichler, S.

PY - 1999/4/1

Y1 - 1999/4/1

N2 - Positron lifetime experiments of high statistical accuracy were performed for various polyethylene samples with different degrees of crystallinity (Xc = 43, 60, and 70%). Four lifetime components were resolved using the MELT, CONTIN or the discrete-term LIFSPECFIT routines. Two long-lived components appeared, their lifetimes and intensities varied systematically with Xc. τ4 arose from o-Ps annihilation in holes of the amorphous phase while τ3 may be attributed to crystals.

AB - Positron lifetime experiments of high statistical accuracy were performed for various polyethylene samples with different degrees of crystallinity (Xc = 43, 60, and 70%). Four lifetime components were resolved using the MELT, CONTIN or the discrete-term LIFSPECFIT routines. Two long-lived components appeared, their lifetimes and intensities varied systematically with Xc. τ4 arose from o-Ps annihilation in holes of the amorphous phase while τ3 may be attributed to crystals.

UR - https://www.scopus.com/pages/publications/0345072487

U2 - 10.1002/(SICI)1521-396X(199904)172:2<303::AID-PSSA303>3.0.CO;2-C

DO - 10.1002/(SICI)1521-396X(199904)172:2<303::AID-PSSA303>3.0.CO;2-C

M3 - Journal articles

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VL - 172

SP - 303

EP - 315

JO - Physica Status Solidi (A) Applied Research

JF - Physica Status Solidi (A) Applied Research

IS - 2

ER -

Do MELT or CONTIN programs accurately reveal the o-Ps lifetime distribution in polymers? II. Semicrystalline polymers

Abstract

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