Preparation of crosslinked polystyrene-grafted PFA films by a simultaneous irradiation method

Kang, Shin‐Woong; Shin, Junhwa; Geng, Fang; Ko, Beom‐Seok; Kim, Chong-Yeal; Nho, Young Chang; Kang, Phil‐Hyun

doi:10.1016/j.jiec.2009.01.008

Cited by 13 publications

(7 citation statements)

References 19 publications

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“…Among various PVBC‐grafted fluoropolymer films, the PVBC‐grafted ETFE film was found to have higher mechanical properties than other PVBC‐grafted fluoropolymer films . The thermal degradation temperature of an ETFE backbone polymer in a PVBC‐grafted ETFE film increased to a higher temperature, compared with a pure ETFE film, while the thermal degradation temperature of the ETFE backbone polymer in PS‐grafted ETFE film slightly decreased to a lower temperature …”

Section: Introductionmentioning

confidence: 99%

Thermal behavior of poly(vinylbenzyl chloride)‐grafted poly(ethylene‐co‐tetrafluoroethylene) films

Song

Lee

Woo

et al. 2014

J Polym Sci B Polym Phys

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The effect of the degree of grafting (DOG) on the thermal behavior of poly(vinylbenzyl chloride)‐grafted poly(ethylene‐co‐tetrafluoroethylene) (ETFE‐g‐PVBC) films was investigated by differential scanning calorimetry (DSC), X‐ray diffraction (XRD), dynamic mechanical analysis (DMA), FT‐IR, and thermogravimetric analysis (TGA) instruments. Several ETFE‐g‐PVBC films with various degrees of grafting, including 10, 24, 41, 60, and 94%, were prepared using a radiation grafting technique. The DSC and XRD results of the ETFE‐g‐PVBC films revealed that the crystallinity of the films decreased as the DOG increased. The DMA and FT‐IR results of the films indicated that a crosslinking reaction occurred at temperatures above 250 °C. In the thermal properties of the grafted films, an increase in the DOG led to an increase in the decomposition temperature. The activation energy (Ea) of the thermal decomposition was calculated using Kissinger's equation from TGA results. The Ea value of the PVBC graft chain was found to increase as the DOG increased, indicating that the crosslinking reaction of ETFE‐g‐PVBC films increased with an increase in the DOG during the thermal degradation process. © 2014 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2014, 52, 517–525

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Section: Introductionmentioning

confidence: 99%

Thermal behavior of poly(vinylbenzyl chloride)‐grafted poly(ethylene‐co‐tetrafluoroethylene) films

Song

Lee

Woo

et al. 2014

J Polym Sci B Polym Phys

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“…In the previous study [16], it was found that the content of a cross-linker (DVB) in the grafting solution greatly influences the simultaneous radiation grafting of styrene onto a PFA film along with the irradiated dose and dose rate. Based on this previous study, a radiation grafting condition for the preparation of crosslinked PFA-g-PSSA membranes with various DVB contents (0%, 5%, 10%, 20%, and 30%) was established, as shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…However, only a few studies [10,13] have utilized a simultaneous irradiation method to prepare the desired crosslinked membranes, and furthermore, only a small content of DVB (up to 4%) has been applied in these studies. In a previous study [16], several styrene grafting solutions containing various contents (0%, 5%, 10%, 15%, and 20%) of DVB were subjected to the preparation of the cross-linked polystyrene-grafted PFA films (PFA-g-PS/ DVB) by a simultaneous radiation grafting method. The effects of 0168-583X/$ -see front matter Ó 2010 Elsevier B.V. All rights reserved.…”

Section: Introductionmentioning

confidence: 99%

Radiolytic preparation of poly(styrene sulfonic acid) – grafted poly(tetrafluoroethylene-co-perfluorovinyl vinyl ether) membranes with highly cross-linked networks

Kang

Shin

Geng

et al. 2010

Nuclear Instruments and Methods in Physics Research Section B:

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“…Using this EBI process, and polymerization procedure, the crosslinking structure of the polymers can be easily controlled. EBI has many advantages including a relatively short processing time, in-line processing, high effectiveness, low equipment cost, and increased availability of energy [1,6,17]. EBI also can be used for inducing crosslinking bond in the structure of CMC.…”

Section: Introductionmentioning

confidence: 99%

Role of electron beam irradiation on superabsorbent behaviors of carboxymethyl cellulose

et al. 2014

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Superabsorbent materials derived from synthetic polymers can cause various environmental problems. In this study, eco-friendly superabsorbent materials were prepared from a mixture of carboxymethyl cellulose (CMC) as a raw material and different concentrations of citric acid (CA) as a crosslinking agent through electron beam irradiation (EBI). The results showed that the CMC/2 wt% CA and CMC/4 wt% CA samples obtained using 20-kGy EBI showed the highest gel fraction value of over 95 % and the highest swelling degree of around 7,000 %. In addition, the water retention of the swollen CMC/2 wt% CA gel decreased steadily to around 63 % of the initial absorbed water during a period of 7 h, and then remained at around 60 %.

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Preparation of crosslinked polystyrene-grafted PFA films by a simultaneous irradiation method

Cited by 13 publications

References 19 publications

Thermal behavior of poly(vinylbenzyl chloride)‐grafted poly(ethylene‐co‐tetrafluoroethylene) films

Thermal behavior of poly(vinylbenzyl chloride)‐grafted poly(ethylene‐co‐tetrafluoroethylene) films

Radiolytic preparation of poly(styrene sulfonic acid) – grafted poly(tetrafluoroethylene-co-perfluorovinyl vinyl ether) membranes with highly cross-linked networks

Role of electron beam irradiation on superabsorbent behaviors of carboxymethyl cellulose

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