The effect of hot DMSO treatment on the γ-ray-induced grafting of acrylamide onto PET films

Nazia Rahman; Nobuhiro Sato; Masaaki Sugiyama; Yoshiki Hidaka; Hirotaka Okabe; Kazuhiro Hara

doi:10.1038/pj.2014.12

The effect of hot DMSO treatment on the γ-ray-induced grafting of acrylamide onto PET films

Nazia Rahman, Nobuhiro Sato, Masaaki Sugiyama, Yoshiki Hidaka, Hirotaka Okabe, Kazuhiro Hara

Applied Physics

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

In the present study, the γ-ray induced grafting of acrylamide (AAm) onto poly(ethylene terephthalate) (PET) films and the resulting changes in properties, including the Hg(II)-capturing functionality, were investigated. No grafting was observed on pristine PET films. Therefore, the films were treated with dimethyl sulfoxide (DMSO) before the γ-ray grafting with the goal of facilitating grafting; some of the samples were pretreated at high temperature (100-160 °C) and showed a considerable increase in the adsorption of AAm from solution. The highest graft yield obtained in the present study was 15.5% for the DMSO specimens pretreated at 140 °C and γ-ray irradiated with a 100-kGy total dose (1-kGy h-1 dose rate) in 50 wt% AAm-monomer solutions in the presence of 1 wt% FeCl 3 (polymerization inhibitor). In addition to the promotion of the graft yield, the formation of micropores in the DMSO-pretreated specimens was found during the optical microscopy investigations. This structural change is hypothesized to assist the adsorption and γ-ray grafting of AAm to PET. The AAm-grafted PET films prepared using DMSO pretreatment showed high removal efficiency for Hg(II) ions, whereas the pristine PET film showed no uptake, reflecting these changes.

Original language	English
Pages (from-to)	412-421
Number of pages	10
Journal	Polymer Journal
Volume	46
Issue number	7
DOIs	https://doi.org/10.1038/pj.2014.12
Publication status	Published - Jul 2014

All Science Journal Classification (ASJC) codes

Polymers and Plastics
Materials Chemistry

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10.1038/pj.2014.12

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title = "The effect of hot DMSO treatment on the γ-ray-induced grafting of acrylamide onto PET films",

abstract = "In the present study, the γ-ray induced grafting of acrylamide (AAm) onto poly(ethylene terephthalate) (PET) films and the resulting changes in properties, including the Hg(II)-capturing functionality, were investigated. No grafting was observed on pristine PET films. Therefore, the films were treated with dimethyl sulfoxide (DMSO) before the γ-ray grafting with the goal of facilitating grafting; some of the samples were pretreated at high temperature (100-160 °C) and showed a considerable increase in the adsorption of AAm from solution. The highest graft yield obtained in the present study was 15.5% for the DMSO specimens pretreated at 140 °C and γ-ray irradiated with a 100-kGy total dose (1-kGy h-1 dose rate) in 50 wt% AAm-monomer solutions in the presence of 1 wt% FeCl 3 (polymerization inhibitor). In addition to the promotion of the graft yield, the formation of micropores in the DMSO-pretreated specimens was found during the optical microscopy investigations. This structural change is hypothesized to assist the adsorption and γ-ray grafting of AAm to PET. The AAm-grafted PET films prepared using DMSO pretreatment showed high removal efficiency for Hg(II) ions, whereas the pristine PET film showed no uptake, reflecting these changes.",

author = "Nazia Rahman and Nobuhiro Sato and Masaaki Sugiyama and Yoshiki Hidaka and Hirotaka Okabe and Kazuhiro Hara",

note = "Funding Information: This work was supported by JSPS KAKENHI Grant Number 24360398.",

year = "2014",

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doi = "10.1038/pj.2014.12",

language = "English",

volume = "46",

pages = "412--421",

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T1 - The effect of hot DMSO treatment on the γ-ray-induced grafting of acrylamide onto PET films

AU - Rahman, Nazia

AU - Sato, Nobuhiro

AU - Sugiyama, Masaaki

AU - Hidaka, Yoshiki

AU - Okabe, Hirotaka

AU - Hara, Kazuhiro

N1 - Funding Information: This work was supported by JSPS KAKENHI Grant Number 24360398.

PY - 2014/7

Y1 - 2014/7

N2 - In the present study, the γ-ray induced grafting of acrylamide (AAm) onto poly(ethylene terephthalate) (PET) films and the resulting changes in properties, including the Hg(II)-capturing functionality, were investigated. No grafting was observed on pristine PET films. Therefore, the films were treated with dimethyl sulfoxide (DMSO) before the γ-ray grafting with the goal of facilitating grafting; some of the samples were pretreated at high temperature (100-160 °C) and showed a considerable increase in the adsorption of AAm from solution. The highest graft yield obtained in the present study was 15.5% for the DMSO specimens pretreated at 140 °C and γ-ray irradiated with a 100-kGy total dose (1-kGy h-1 dose rate) in 50 wt% AAm-monomer solutions in the presence of 1 wt% FeCl 3 (polymerization inhibitor). In addition to the promotion of the graft yield, the formation of micropores in the DMSO-pretreated specimens was found during the optical microscopy investigations. This structural change is hypothesized to assist the adsorption and γ-ray grafting of AAm to PET. The AAm-grafted PET films prepared using DMSO pretreatment showed high removal efficiency for Hg(II) ions, whereas the pristine PET film showed no uptake, reflecting these changes.

AB - In the present study, the γ-ray induced grafting of acrylamide (AAm) onto poly(ethylene terephthalate) (PET) films and the resulting changes in properties, including the Hg(II)-capturing functionality, were investigated. No grafting was observed on pristine PET films. Therefore, the films were treated with dimethyl sulfoxide (DMSO) before the γ-ray grafting with the goal of facilitating grafting; some of the samples were pretreated at high temperature (100-160 °C) and showed a considerable increase in the adsorption of AAm from solution. The highest graft yield obtained in the present study was 15.5% for the DMSO specimens pretreated at 140 °C and γ-ray irradiated with a 100-kGy total dose (1-kGy h-1 dose rate) in 50 wt% AAm-monomer solutions in the presence of 1 wt% FeCl 3 (polymerization inhibitor). In addition to the promotion of the graft yield, the formation of micropores in the DMSO-pretreated specimens was found during the optical microscopy investigations. This structural change is hypothesized to assist the adsorption and γ-ray grafting of AAm to PET. The AAm-grafted PET films prepared using DMSO pretreatment showed high removal efficiency for Hg(II) ions, whereas the pristine PET film showed no uptake, reflecting these changes.

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The effect of hot DMSO treatment on the γ-ray-induced grafting of acrylamide onto PET films

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