The Effect of endo/exo-Norbornene Isomer Ratio on Poly(norbornene) Optical Density at 193 nm
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- Chang Chun
- Promerus LLC
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- Bell Andrew
- Promerus LLC
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- Shick Robert A.
- Promerus LLC
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- Seger Lawrence D.
- Promerus LLC
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- Rhodes Larry F.
- Promerus LLC
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- Benedikt George M.
- Lubrizol Advanced Materials
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The polymerization of exo-[(norbornenemethoxy)methyl]-1,1,1,3,3,3-hexafluoro-2-propanol (2) using a palladium catalyst gave a significantly higher Mw polymer than the endo isomer or the 80/20 mixture of endo/exo-2. To achieve similar Mw higher concentrations of formic acid chain transfer agent was needed for the exo isomer than for the 80/20 mixture. As a result, the optical density at 193 nm of the exo isomer polymer is substantially lower since less olefinic polymer end groups were formed. A subtle interplay between chain transfer mechanisms and propagation rates explains the results obtained. Isomer content in poly(2) does not affect the dissolution rate in TMAH.
収録刊行物
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- Journal of Photopolymer Science and Technology
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Journal of Photopolymer Science and Technology 27 (4), 497-501, 2014
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詳細情報 詳細情報について
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- CRID
- 1390282679301742848
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- NII論文ID
- 130004687617
- 40020133239
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- NII書誌ID
- AA11576862
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- ISSN
- 13496336
- 09149244
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- NDL書誌ID
- 025604388
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 使用不可