A novel phenylethynyl-terminated siloxane: Synthesis and electron beam cure

Ian Hamerton; John N. Hay; Gerald Howgate; Brendan J. Howlin; Paula O'Gara

doi:10.1177/095400830301500108

A novel phenylethynyl-terminated siloxane: Synthesis and electron beam cure

Ian Hamerton, John N. Hay, Gerald Howgate, Brendan J. Howlin, Paula O'Gara

Research output: Contribution to journal › Article (Academic Journal) › peer-review

2 Citations (Scopus)

Abstract

The synthesis of a novel phenylethynyl-terminated siloxane polymer is described, by reaction of the amine-terminated siloxane with 4-phenylethynylphthalic anhydride. The oligomer (PET-PDMS) is electron beam (EB) curable, in contrast to the commercial phenylethynyl-terminated imide, PETI-5, probably as a result of increased polymer chain mobility arising from siloxane incorporation. Raman spectroscopy indicates that the cure mechanisms for electron beam and thermal cure of PET-PDMS are different. PET-PDMS appears to undergo chain scission under the influence of an electron beam. Differential scanning calorimetry of the EB cured polymer is also consistent with a mechanism involving cleavage of siloxane linkages.

Original language	English
Pages (from-to)	143-154
Number of pages	12
Journal	High Performance Polymers
Volume	15
Issue number	1
DOIs	https://doi.org/10.1177/095400830301500108
Publication status	Published - 1 Jan 2003

Keywords

Electron beam cure
Phenylethynyl-terminated
Siloxane

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title = "A novel phenylethynyl-terminated siloxane: Synthesis and electron beam cure",

abstract = "The synthesis of a novel phenylethynyl-terminated siloxane polymer is described, by reaction of the amine-terminated siloxane with 4-phenylethynylphthalic anhydride. The oligomer (PET-PDMS) is electron beam (EB) curable, in contrast to the commercial phenylethynyl-terminated imide, PETI-5, probably as a result of increased polymer chain mobility arising from siloxane incorporation. Raman spectroscopy indicates that the cure mechanisms for electron beam and thermal cure of PET-PDMS are different. PET-PDMS appears to undergo chain scission under the influence of an electron beam. Differential scanning calorimetry of the EB cured polymer is also consistent with a mechanism involving cleavage of siloxane linkages.",

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T1 - A novel phenylethynyl-terminated siloxane

T2 - Synthesis and electron beam cure

AU - Hamerton, Ian

AU - Hay, John N.

AU - Howgate, Gerald

AU - Howlin, Brendan J.

AU - O'Gara, Paula

PY - 2003/1/1

Y1 - 2003/1/1

N2 - The synthesis of a novel phenylethynyl-terminated siloxane polymer is described, by reaction of the amine-terminated siloxane with 4-phenylethynylphthalic anhydride. The oligomer (PET-PDMS) is electron beam (EB) curable, in contrast to the commercial phenylethynyl-terminated imide, PETI-5, probably as a result of increased polymer chain mobility arising from siloxane incorporation. Raman spectroscopy indicates that the cure mechanisms for electron beam and thermal cure of PET-PDMS are different. PET-PDMS appears to undergo chain scission under the influence of an electron beam. Differential scanning calorimetry of the EB cured polymer is also consistent with a mechanism involving cleavage of siloxane linkages.

AB - The synthesis of a novel phenylethynyl-terminated siloxane polymer is described, by reaction of the amine-terminated siloxane with 4-phenylethynylphthalic anhydride. The oligomer (PET-PDMS) is electron beam (EB) curable, in contrast to the commercial phenylethynyl-terminated imide, PETI-5, probably as a result of increased polymer chain mobility arising from siloxane incorporation. Raman spectroscopy indicates that the cure mechanisms for electron beam and thermal cure of PET-PDMS are different. PET-PDMS appears to undergo chain scission under the influence of an electron beam. Differential scanning calorimetry of the EB cured polymer is also consistent with a mechanism involving cleavage of siloxane linkages.

KW - Electron beam cure

KW - Phenylethynyl-terminated

KW - Siloxane

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DO - 10.1177/095400830301500108

M3 - Article (Academic Journal)

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JO - High Performance Polymers

JF - High Performance Polymers

SN - 0954-0083

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A novel phenylethynyl-terminated siloxane: Synthesis and electron beam cure

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