The Hong Kong University of Science and Technology

Kaitian Xu

Ben Zhong Tang

Han Peng

Qunhui Sun

Jingdong Luo

Wing Yip Lam

Xixiang Zhang

John A K Cha

A method for limiting the transmission of light through a material is disclosed. In the method, a layer composed of a hyperbranched polymer formed via a copolycyclotrimerization reaction is interposed between a light source and the material. Also provided is a method for emitting light comprising exciting the hyperbranched polymer. In addition, methods for limiting the transmission of light and for emitting light using hyperbranched polymers formed by homopolycyclotrimerization reactions are disclosed. A new class of hyperbranched polymers produced by copolycyclotrimerization is also disclosed.

Hyperbranched polymers

Hyperbranched organometallic polymers, including poly &lsqb;1,1&prime;-ferrocenylenesilynes&rsqb;, poly &lsqb;1,1&prime;-ferrocenylene-(alkyl)silynes&rsqb;, poly &lsqb;1,1&prime;-ferrocenylene(alkenyl)silynes&rsqb; and poly &lsqb;1,1&prime;-ferrocenylene(aromatic)silynes&rsqb;, 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.

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

Growing community of inventors

Hong Kong, China

Kaitian Xu