Industrial Technology Research Institute

Cha-Wen Chang

Jing-Pin Pan

Tsung-Hsiung Wang

Chang-Rung Yang

Jung-Mu Hsu

Shinn-Jen Chang

Guey-Sheng Liou

Hung-Ju Yen

Wan-Jung Teng

Ching-Mao Huang

Shu-Ya Tsai

Yu-Hui Chen

Jen-Yu Chen

A polymer is disclosed, which includes a structure of Formula 1 or Formula 2. Ris a Calkylene group or a Carylene group, Ris a Calkyl group, and Ris a functional group of Formula 3. Each of X, X, X, X, X, and X, being the same or different, is H or methyl. Each of p, q, and r, being the same or different, is an integer of 1 to 60. Ris &#x2014;CH&#x2014;, &#x2014;CH&#x2014;, Each of m and n, being the same or different, is an integer of 0 to 50, and m+n&#x2260;0.

Polymer and dispersion

Provided is a pentaaryldiamine-containing bismaleimide compound of Formula (I): wherein Arto Arare independently C-Caryl; and Arand Arare optionally substituted by one or more substitutent(s) selected from the group consisting of C-Calkyl, C-Calkoxy, and cyano. The compound of Formula (I) is obtained by a method including the steps of reacting a diamine with maleic anhydride in a solvent to form an amic acid, and cyclodehydrating the amic acid in the presence of a catalyst and a dehydrating agent. The compound of Formula (I) has a nonlinear and asymmetric structure, is amorphous, and is readily soluble in a variety of organic solvents so that the toughness of the product made there from can be improved and processing of the compound can be simplified.

Pentaaryldiamine-containing bismaleimide compound and method of producing the compound

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Zhongpu Township, Taiwan

Cha-Wen Chang