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- WATANABE HISAHIKO
- Department of Chemical Engineering, University of Tokyo
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- MIYAUCHI TERUKATSU
- Department of Chemical Engineering, University of Tokyo
書誌事項
- タイトル別名
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- THE SOLUBILITY OF IODINE IN LIQUID POLYDIMETHYLSILOXANE
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説明
The solubility of iodine in PDS (polydimethylsiloxane) has been measured for varying degrees of polymerization (number of silicon atoms) from 2 to 470. The data obtained show good agreement with a solubility equation derived on the basis of the following two assumptions : (1) a PDS molecule is composed of several completely freely oriented segments, and (2) the mixture of these segments and iodine can be treated as a regular solution as far as enthalpy calculation is concerned.<br> A constant segment solubility parameter δS, which is about 7.5 cal1/2/cm3/2, is obtained regardless of degree of polymerization by the use of this solubility equation. This value is nearly the same as that of silicon rubber from swelling data. On the basis of the discussions above, it is concluded that the size of a segment is nearly equal to that of a siloxane unit. The molecular-attraction constant for a siloxane unit is found to be 580-600 cal1/2•cm3/2/mol.
収録刊行物
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- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
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JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 6 (2), 109-114, 1973
公益社団法人 化学工学会
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詳細情報 詳細情報について
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- CRID
- 1390282679546473216
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- NII論文ID
- 130000786221
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- COI
- 1:CAS:528:DyaE2cXntFanuw%3D%3D
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- ISSN
- 18811299
- 00219592
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- 本文言語コード
- en
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- データソース種別
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- JaLC
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- 使用不可