Synthesis of hyperbranched organometallic polymers and their use as precursors to advanced ceramic materials

US6759502B1 · kind B1 · utility

Assignee

• The Hong Kong University of Science and Technology

Inventors

• Ben Zhong Tang · 流花街道, CN
• Kaitian Xu · Hong Kong, CN
• Han-Hsing Peng · New Taipei, TW
• Jingdong Luo · Seattle, US
• Xixiang Zhang · Thuwal, SA
• Qunhui Sun · Melbourne, AU
• Wing Yip Lam · Hong Kong, CN
• John A. K. Cha · Yuen Long, CN

Key dates

• Filing date: Mar 26, 2002
• Grant date: Jul 6, 2004
• Expiry date: Mar 26, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G77/60
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Hyperbranched organometallic polymers, including poly [1,1′-ferrocenylenesilynes], poly [1,1′-ferrocenylene-(alkyl)silynes], poly [1,1′-ferrocenylene(alkenyl)silynes] and poly [1,1′-ferrocenylene(aromatic)silynes], are useful as precursors to certain ceramic materials. Processes for the preparation of such polymers and the preparation of ceramic materials from such polymers are described, as are the resulting ceramic materials and their use as ferromagnetic materials and electrically conductive materials.