Mechanism for the Formation of Poly(phenylsilsesquioxane)

• Published in: Macromolecules Vol. 37; no. 8; pp. 2775 - 2778
• Main Authors: Yamamoto, Shigeyuki, Yasuda, Naoki, Ueyama, Akemi, Adachi, Hiroshi, Ishikawa, Mitsuo
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 20.04.2004
• Subjects: Applied sciences; Exact sciences and technology; Inorganic and organomineral polymers; Physicochemistry of polymers; Preparation; Hydrolysis; Solution polycondensation; Silsesquioxane polymer; Self condensation; Reaction mechanism; Organic silane; Acid catalysis; Experimental study; Successive reaction

Poly(phenylsilsesquioxane) with molecular weight of 1400 was synthesized by hydrolysis of phenyltrichlorosilane, followed by condensation of the resulting hydrolyzates in the presence of a catalytic amount of hydrochloric acid in methyl isobutyl ketone. The progress of dehydration of the hydrolyzate...