Industrial Technology Research Institute

Chu-Chien Lin

Wen-Hsien Tseng

Hsi-Hsin Shih

Joung-Yei Chen

Rong-Ming Ho

Bao-Tsan Ko

Yeo-Wan Chiang

Hui-Wen Fan

Bor-Hunn Huang

A nanopatterned template for use in manufacturing nanoscale objects. The nanopatterned template contains a nanoporous thin film with a periodically ordered porous geomorphology which is made from a process comprising the steps of: (a) using a block copolymerization process to prepare a block copolymer comprising first and second polymer blocks, the first and second polymer blocks being incompatible with each other; (b) forming a thin film under conditions such that the first polymer blocks form into a periodically ordered topology; and (c) selectively degrading the first polymer blocks to cause the thin film to become a nanoporous material with a periodically ordered porous geomorphology. In a preferred embodiment, the block copolymer is poly(styrene)-poly(L-lactide) (PS-PLLA) chiral block copolymer, the first polymer is poly(L-lactide), and the second polymer is polystyrene. Experimental results show that the first polymer blocks can be formed into a hexagonal cylindrical geomorphology with its axis perpendicular to a surface of the thin film. After hydrolysis to selectively degrade the first polymer blocks, a thin film having a series of repeated nanoscale hexagonal-cylindrical channels is obtained.

Nanopatterned templates from oriented degradable diblock copolymer thin films

Growing community of inventors

Taichung, Taiwan

Chu-Chien Lin