Tunable Crystalline Phases in UV-Curable PEG-Grafted Ladder-Structured Silsesquioxane/Polyimide Composites
A series of UV-curable hybrid composite blends containing a carboxylic acid functionalized polyimidewith varying amounts of high molecular weight (~1 K) PEG-grafted ladder-structured polysilsesquioxanes copolymerized with methacryl groups were fabricated and their structural, thermal, mechanical, an...
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MDPI AG
2020-05-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/13/10/2295 |
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| author | Ryung Il Kim Ju Ho Shin Jong Suk Lee Jung-Hyun Lee Albert S. Lee Seung Sang Hwang |
| author_facet | Ryung Il Kim Ju Ho Shin Jong Suk Lee Jung-Hyun Lee Albert S. Lee Seung Sang Hwang |
| author_sort | Ryung Il Kim |
| collection | DOAJ |
| description | A series of UV-curable hybrid composite blends containing a carboxylic acid functionalized polyimidewith varying amounts of high molecular weight (~1 K) PEG-grafted ladder-structured polysilsesquioxanes copolymerized with methacryl groups were fabricated and their structural, thermal, mechanical, and surface properties characterized. At a composite weight ratio of polyimide above 50 wt.%, a stark shift from amorphous to crystalline polyethylene glycol (PEG) phases were observed, accompanied by a drastic increase in both surface moduli and brittleness index. Moreover, fabricated composites were shown to have a wide range water contact angle, 9.8°–73.8°, attesting to the tunable surface properties of these amphiphilic hybrid polymer composites. The enhanced mechanical properties, combined with the utility of tunable surface hydrophilicity allows for the possible use of these hybrid polymer composites to be utilized as photosensitive polyimide negative photoresists for a myriad of semiconductor patterning processes. |
| first_indexed | 2024-03-10T19:47:45Z |
| format | Article |
| id | doaj.art-914565f572e14837a0d065d5c6daa990 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T19:47:45Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-914565f572e14837a0d065d5c6daa9902023-11-20T00:37:53ZengMDPI AGMaterials1996-19442020-05-011310229510.3390/ma13102295Tunable Crystalline Phases in UV-Curable PEG-Grafted Ladder-Structured Silsesquioxane/Polyimide CompositesRyung Il Kim0Ju Ho Shin1Jong Suk Lee2Jung-Hyun Lee3Albert S. Lee4Seung Sang Hwang5Materials Architecturing Research Center, Korea Institute of Science and Technology, Hwarangno 14–gil 5, Seongbuk Gu, Seoul 02792, KoreaDepartment of Chemical and Biomolecular Engineering, Sogang University, Baekbeom-ro 35, Mapo-gu, Seoul 04107, KoreaDepartment of Chemical and Biomolecular Engineering, Sogang University, Baekbeom-ro 35, Mapo-gu, Seoul 04107, KoreaDepartment of Chemical and Biological Engineering, Korea University, 5–1 Anam-dong, Seongbuk Gu Seoul 02850, KoreaMaterials Architecturing Research Center, Korea Institute of Science and Technology, Hwarangno 14–gil 5, Seongbuk Gu, Seoul 02792, KoreaMaterials Architecturing Research Center, Korea Institute of Science and Technology, Hwarangno 14–gil 5, Seongbuk Gu, Seoul 02792, KoreaA series of UV-curable hybrid composite blends containing a carboxylic acid functionalized polyimidewith varying amounts of high molecular weight (~1 K) PEG-grafted ladder-structured polysilsesquioxanes copolymerized with methacryl groups were fabricated and their structural, thermal, mechanical, and surface properties characterized. At a composite weight ratio of polyimide above 50 wt.%, a stark shift from amorphous to crystalline polyethylene glycol (PEG) phases were observed, accompanied by a drastic increase in both surface moduli and brittleness index. Moreover, fabricated composites were shown to have a wide range water contact angle, 9.8°–73.8°, attesting to the tunable surface properties of these amphiphilic hybrid polymer composites. The enhanced mechanical properties, combined with the utility of tunable surface hydrophilicity allows for the possible use of these hybrid polymer composites to be utilized as photosensitive polyimide negative photoresists for a myriad of semiconductor patterning processes.https://www.mdpi.com/1996-1944/13/10/2295polyimideladder-structured polysilsesquioxanehybrid composite6FDA-DAM:DABA (3:2) |
| spellingShingle | Ryung Il Kim Ju Ho Shin Jong Suk Lee Jung-Hyun Lee Albert S. Lee Seung Sang Hwang Tunable Crystalline Phases in UV-Curable PEG-Grafted Ladder-Structured Silsesquioxane/Polyimide Composites Materials polyimide ladder-structured polysilsesquioxane hybrid composite 6FDA-DAM:DABA (3:2) |
| title | Tunable Crystalline Phases in UV-Curable PEG-Grafted Ladder-Structured Silsesquioxane/Polyimide Composites |
| title_full | Tunable Crystalline Phases in UV-Curable PEG-Grafted Ladder-Structured Silsesquioxane/Polyimide Composites |
| title_fullStr | Tunable Crystalline Phases in UV-Curable PEG-Grafted Ladder-Structured Silsesquioxane/Polyimide Composites |
| title_full_unstemmed | Tunable Crystalline Phases in UV-Curable PEG-Grafted Ladder-Structured Silsesquioxane/Polyimide Composites |
| title_short | Tunable Crystalline Phases in UV-Curable PEG-Grafted Ladder-Structured Silsesquioxane/Polyimide Composites |
| title_sort | tunable crystalline phases in uv curable peg grafted ladder structured silsesquioxane polyimide composites |
| topic | polyimide ladder-structured polysilsesquioxane hybrid composite 6FDA-DAM:DABA (3:2) |
| url | https://www.mdpi.com/1996-1944/13/10/2295 |
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