Synthesize and Characterization of New Block Copolymer for Directed Self Assembly

doi:10.7517/j.issn.1674-0475.180108

Imaging Science and Photochemistry ›› 2018, Vol. 36 ›› Issue (4): 306-314.DOI: 10.7517/j.issn.1674-0475.180108

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Synthesize and Characterization of New Block Copolymer for Directed Self Assembly

LI Bing¹, LI Haibo¹, Mark Neisser¹, Caleb L. Breaux², Clifford L. Henderson³

1. Kempur Microelectronics Co., Ltd, Beijing 101312, P. R. China;
2. Department of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332;
3. Department of Chemistry and Biomolecular Engineering, University of South Florida, Tampa, FL 33620

Received:2018-01-22 Revised:2018-03-28 Online:2018-07-15 Published:2018-07-15

Abstract

Abstract: A new block copolymer poly(tert-butyl styrene)-b-Poly(hydroxyethylmethylacrylate) with high Flory-Huggins parameter was designed, and it was synthesized by anionic polymerization and atom transfer radical polymerization, respectively. Then it was characterized by nuclear magnetic resonance (NMR) for the volume fraction of the two blocks, and by small angle X-ray scatter for the morphology and size after micro phase separation. The results showed that the block copolymer with anionic polymerization preparation had better molecular weight disperse. In addition, after the micro phase separation and in the condition of the same molecular weight, it could form the smaller-morphorlogy ordered structure with the cylinder phase of 9.93 nm size and the lamellar phase of 8.42 nm size.

Key words: directed self assembly, block copolymer, saxs, anionic polymerization, ATRP

LI Bing, LI Haibo, Mark Neisser, Caleb L. Breaux, Clifford L. Henderson. Synthesize and Characterization of New Block Copolymer for Directed Self Assembly[J]. Imaging Science and Photochemistry, 2018, 36(4): 306-314.

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Synthesize and Characterization of New Block Copolymer for Directed Self Assembly

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