Polymerisation via Zwitterionen
Zwitterions and ylides were for a long time considered to be inadequate to initiate ionic polymerization. Recently however, it has been proved that such reactions are possible. The polymerization is initiated either through zwitterions or ylides, prepared directly from tert. phosphines or similar s...
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| Format: | Article |
| Language: | deu |
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Swiss Chemical Society
1972-07-01
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| Series: | CHIMIA |
| Online Access: | https://www.chimia.ch/chimia/article/view/9017 |
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| _version_ | 1850170423098998784 |
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| author | Hans Zweifel Theodor Völker |
| author_facet | Hans Zweifel Theodor Völker |
| author_sort | Hans Zweifel |
| collection | DOAJ |
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Zwitterions and ylides were for a long time considered to be inadequate to initiate ionic polymerization. Recently however, it has been proved that such reactions are possible. The polymerization is initiated either through zwitterions or ylides, prepared directly from tert. phosphines or similar substances and an appropriate monomer, or through addition of the free ylide to the monomer. As monomers are to be considered, in particular, all unsaturated compounds or lactones capable of undergoing anionic polymerization. Such polymerizations generally lead to the formation of macro zwitterions. The reaction scheme is discussed with the help of a few examples.
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| format | Article |
| id | doaj-art-cd4edbe3fa7a46978d75d69b9453eaf6 |
| institution | OA Journals |
| issn | 0009-4293 2673-2424 |
| language | deu |
| publishDate | 1972-07-01 |
| publisher | Swiss Chemical Society |
| record_format | Article |
| series | CHIMIA |
| spelling | doaj-art-cd4edbe3fa7a46978d75d69b9453eaf62025-08-20T02:20:29ZdeuSwiss Chemical SocietyCHIMIA0009-42932673-24241972-07-0126710.2533/chimia.1972.345Polymerisation via ZwitterionenHans Zweifel0Theodor Völker1Forschungslaboratorium der Lonza AG, Freiburg (Schweiz)Forschungslaboratorium der Lonza AG, Freiburg (Schweiz) Zwitterions and ylides were for a long time considered to be inadequate to initiate ionic polymerization. Recently however, it has been proved that such reactions are possible. The polymerization is initiated either through zwitterions or ylides, prepared directly from tert. phosphines or similar substances and an appropriate monomer, or through addition of the free ylide to the monomer. As monomers are to be considered, in particular, all unsaturated compounds or lactones capable of undergoing anionic polymerization. Such polymerizations generally lead to the formation of macro zwitterions. The reaction scheme is discussed with the help of a few examples. https://www.chimia.ch/chimia/article/view/9017 |
| spellingShingle | Hans Zweifel Theodor Völker Polymerisation via Zwitterionen CHIMIA |
| title | Polymerisation via Zwitterionen |
| title_full | Polymerisation via Zwitterionen |
| title_fullStr | Polymerisation via Zwitterionen |
| title_full_unstemmed | Polymerisation via Zwitterionen |
| title_short | Polymerisation via Zwitterionen |
| title_sort | polymerisation via zwitterionen |
| url | https://www.chimia.ch/chimia/article/view/9017 |
| work_keys_str_mv | AT hanszweifel polymerisationviazwitterionen AT theodorvolker polymerisationviazwitterionen |