Synthesis of Aromatic Polythioethers Containing 1,3,5-Triazine Ring by Aromatic Nucleophilic Substitution Polymerization |
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Authors: | Shuji Kondo Hideki Mori Misako Kadomatsu Koji Sato Tsugumichi Ando Tomohiko Kakuno |
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Institution: | Department of Materials Science and Engineering , Nagoya Institute of Technology , Gokiso-cho, Showa-ku, Nagoya, 466, Japan |
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Abstract: | Abstract Reaction of 2,4-dichloro-6-phenyl-1,3,5-triazines with bis(4-mercaptophenyl) sulfide in the presence of a base in THF afforded the corresponding condensation polymer as a whole aromatic polythioether in moderate yield. The polymerization of several 2,4-dichloro-1,3,5-triazine derivatives with this dithiols also proceeded in the o-dichlorobenzene-water two-phase system by using phase transfer catalysts. The resulting polymers consisted of THF-soluble and -insoluble fractions. The x-ray diffraction pattern indicated that these THF-insoluble polymers have a highly crystalline nature. Further, the polymers obtained here showed high thermal stability. |
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Keywords: | interpenetrating polymer network swelling behavior methacrylic acid alginate |
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