Solvent-free synthesis of poly (phenylene ether) (PPE) in supercritical carbon dioxide (scCO2)

Ai Yamasaki; Yuta Sugiyama; Hideto Mikami; Masaru Watanabe; Yoshiyuki Sato; Richard Smith; Hiroshi Inomata

Solvent-free synthesis of poly (phenylene ether) (PPE) in supercritical carbon dioxide (scCO₂)

Ai Yamasaki, Yuta Sugiyama, Hideto Mikami, Masaru Watanabe, Yoshiyuki Sato, Richard Smith, Hiroshi Inomata

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The synthesis of poly (phenylene ether) (PPE) has been carried out in supercritical carbon dioxide (scCO₂) at 40°C and 15 MPa with a one-step polymerization. Maximum yield and weight-average molecular weight (Mw) of the synthesized PPE were ca. 70 % and 1.1 104, respectively. Two-step polymerizations at 55°C, 22 MPa or 70°C, 30 MPa for 8 h after synthesis at 40°C, 15 MPa for 20 h, gave yields and Mw of up to ca. 80 % and 1.9×10⁴, respectively. A small amount of diphenoquinone (DPQ) was found in both one-step (1.4 %) and two-step (ca.1.7 %) polymerizations. The synthesized PPE was found to have similar glass transition temperature (Tg, 200°C) to that of commercial one. In the synthesis, scCO₂ seemed to function not only as a reaction solvent but also as a plasticizer for the PPE polymer.

Original language	English
Title of host publication	2006 AIChE Annual Meeting
Publication status	Published - 2006 Dec 1
Event	2006 AIChE Annual Meeting - San Francisco, CA, United States Duration: 2006 Nov 12 → 2006 Nov 17

Other

Other	2006 AIChE Annual Meeting
Country/Territory	United States
City	San Francisco, CA
Period	06/11/12 → 06/11/17

ASJC Scopus subject areas

Chemical Engineering(all)
Chemistry(all)

Cite this

@inproceedings{f6810eb534cd42ebb78496b95688c55f,

title = "Solvent-free synthesis of poly (phenylene ether) (PPE) in supercritical carbon dioxide (scCO2)",

abstract = "The synthesis of poly (phenylene ether) (PPE) has been carried out in supercritical carbon dioxide (scCO2) at 40°C and 15 MPa with a one-step polymerization. Maximum yield and weight-average molecular weight (Mw) of the synthesized PPE were ca. 70 % and 1.1 104, respectively. Two-step polymerizations at 55°C, 22 MPa or 70°C, 30 MPa for 8 h after synthesis at 40°C, 15 MPa for 20 h, gave yields and Mw of up to ca. 80 % and 1.9×104, respectively. A small amount of diphenoquinone (DPQ) was found in both one-step (1.4 %) and two-step (ca.1.7 %) polymerizations. The synthesized PPE was found to have similar glass transition temperature (Tg, 200°C) to that of commercial one. In the synthesis, scCO2 seemed to function not only as a reaction solvent but also as a plasticizer for the PPE polymer.",

author = "Ai Yamasaki and Yuta Sugiyama and Hideto Mikami and Masaru Watanabe and Yoshiyuki Sato and Richard Smith and Hiroshi Inomata",

year = "2006",

month = dec,

day = "1",

language = "English",

isbn = "081691012X",

booktitle = "2006 AIChE Annual Meeting",

note = "2006 AIChE Annual Meeting ; Conference date: 12-11-2006 Through 17-11-2006",

}

TY - GEN

T1 - Solvent-free synthesis of poly (phenylene ether) (PPE) in supercritical carbon dioxide (scCO2)

AU - Yamasaki, Ai

AU - Sugiyama, Yuta

AU - Mikami, Hideto

AU - Watanabe, Masaru

AU - Sato, Yoshiyuki

AU - Smith, Richard

AU - Inomata, Hiroshi

PY - 2006/12/1

Y1 - 2006/12/1

N2 - The synthesis of poly (phenylene ether) (PPE) has been carried out in supercritical carbon dioxide (scCO2) at 40°C and 15 MPa with a one-step polymerization. Maximum yield and weight-average molecular weight (Mw) of the synthesized PPE were ca. 70 % and 1.1 104, respectively. Two-step polymerizations at 55°C, 22 MPa or 70°C, 30 MPa for 8 h after synthesis at 40°C, 15 MPa for 20 h, gave yields and Mw of up to ca. 80 % and 1.9×104, respectively. A small amount of diphenoquinone (DPQ) was found in both one-step (1.4 %) and two-step (ca.1.7 %) polymerizations. The synthesized PPE was found to have similar glass transition temperature (Tg, 200°C) to that of commercial one. In the synthesis, scCO2 seemed to function not only as a reaction solvent but also as a plasticizer for the PPE polymer.

AB - The synthesis of poly (phenylene ether) (PPE) has been carried out in supercritical carbon dioxide (scCO2) at 40°C and 15 MPa with a one-step polymerization. Maximum yield and weight-average molecular weight (Mw) of the synthesized PPE were ca. 70 % and 1.1 104, respectively. Two-step polymerizations at 55°C, 22 MPa or 70°C, 30 MPa for 8 h after synthesis at 40°C, 15 MPa for 20 h, gave yields and Mw of up to ca. 80 % and 1.9×104, respectively. A small amount of diphenoquinone (DPQ) was found in both one-step (1.4 %) and two-step (ca.1.7 %) polymerizations. The synthesized PPE was found to have similar glass transition temperature (Tg, 200°C) to that of commercial one. In the synthesis, scCO2 seemed to function not only as a reaction solvent but also as a plasticizer for the PPE polymer.

UR - http://www.scopus.com/inward/record.url?scp=57049184062&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=57049184062&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:57049184062

SN - 081691012X

SN - 9780816910120

BT - 2006 AIChE Annual Meeting

T2 - 2006 AIChE Annual Meeting

Y2 - 12 November 2006 through 17 November 2006

ER -

Solvent-free synthesis of poly (phenylene ether) (PPE) in supercritical carbon dioxide (scCO₂)

Abstract

Other

ASJC Scopus subject areas

Other files and links

Fingerprint

Cite this