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Carbon black/polystyrene composites as candidates for gas sensing materials

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Title: Carbon black/polystyrene composites as candidates for gas sensing materials
Authors: Li, Jun Rong, Xu, Jia Rui, Zhang, Ming Qiu ceszmq@zsu.edu.cn, Rong, Min Zhi
Source: Carbon. Oct2003, Vol. 41 Issue 12, p2353. 8p.
Subjects: Carbon, Polystyrene, Polymers, Polymerization, Chemical reactions
Abstract: Amorphous polymer-based composites consisting of polystyrene and carbon black were developed in the current work as candidates for gas sensing materials. With the help of polymerization filling, i.e., in-situ polymerization of styrene in the presence of carbon black, the composites were provided with low percolation threshold. The experimental results indicated that the composites have selective sensitivity as characterized by high electrical responsivity to the vapors of non-polar and low polar solvents, and low responsivity to high polar solvent vapors as well. Besides conductivity of the composites, absorption characteristics of both the matrix and the fillers exert importance influence on the gas sensitivity of the composites. Therefore, composites’ performance can be tailored by changing filler concentration, molecular weight and molecular weight distribution of matrix polymer, etc. In regard to the fact that most conducting polymer composites as vapor sensing materials are based on crystalline polymer matrices, the approach reported by this paper provides another feasible way to develop new candidates. [Copyright &y& Elsevier]
Copyright of Carbon is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 10799450
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Carbon black/polystyrene composites as candidates for gas sensing materials
– Name: Author
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  Data: <searchLink fieldCode="AR" term="%22Li%2C+Jun+Rong%22">Li, Jun Rong</searchLink><br /><searchLink fieldCode="AR" term="%22Xu%2C+Jia+Rui%22">Xu, Jia Rui</searchLink><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Ming+Qiu%22">Zhang, Ming Qiu</searchLink><i> ceszmq@zsu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Rong%2C+Min+Zhi%22">Rong, Min Zhi</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Carbon%22">Carbon</searchLink>. Oct2003, Vol. 41 Issue 12, p2353. 8p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Carbon%22">Carbon</searchLink><br /><searchLink fieldCode="DE" term="%22Polystyrene%22">Polystyrene</searchLink><br /><searchLink fieldCode="DE" term="%22Polymers%22">Polymers</searchLink><br /><searchLink fieldCode="DE" term="%22Polymerization%22">Polymerization</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+reactions%22">Chemical reactions</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Amorphous polymer-based composites consisting of polystyrene and carbon black were developed in the current work as candidates for gas sensing materials. With the help of polymerization filling, i.e., in-situ polymerization of styrene in the presence of carbon black, the composites were provided with low percolation threshold. The experimental results indicated that the composites have selective sensitivity as characterized by high electrical responsivity to the vapors of non-polar and low polar solvents, and low responsivity to high polar solvent vapors as well. Besides conductivity of the composites, absorption characteristics of both the matrix and the fillers exert importance influence on the gas sensitivity of the composites. Therefore, composites’ performance can be tailored by changing filler concentration, molecular weight and molecular weight distribution of matrix polymer, etc. In regard to the fact that most conducting polymer composites as vapor sensing materials are based on crystalline polymer matrices, the approach reported by this paper provides another feasible way to develop new candidates. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Carbon is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1016/S0008-6223(03)00273-2
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      – Code: eng
        Text: English
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        PageCount: 8
        StartPage: 2353
    Subjects:
      – SubjectFull: Carbon
        Type: general
      – SubjectFull: Polystyrene
        Type: general
      – SubjectFull: Polymers
        Type: general
      – SubjectFull: Polymerization
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      – SubjectFull: Chemical reactions
        Type: general
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      – TitleFull: Carbon black/polystyrene composites as candidates for gas sensing materials
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            NameFull: Li, Jun Rong
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            NameFull: Xu, Jia Rui
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            NameFull: Zhang, Ming Qiu
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            – D: 01
              M: 10
              Text: Oct2003
              Type: published
              Y: 2003
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            – TitleFull: Carbon
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