Polyaddition
Polyaddition A polymerization in which the growth of polymer chains proceeds by addition reactions between molecules of all degrees of polymerization. Notes: 1. The growth steps are expressed by: Px+Py → Px+y {x}∈{1,2,…∞};{y}∈{1,2,…∞}
where Px and Py denote chains of degrees of polymerization x and y, respectively.
2. The earlier term 'addition polymerization' embraced both the current concepts of 'polyaddition' and 'chain polymerization', but did not include 'condensative chain polymerization'.[1]
Polyaddition (or addition polymerisation [2][3]) is a polymerization reaction that forms polymers via individual independent addition reactions. Polyaddition occurs as a reaction between functional groups on molecules with low degrees of polymerization, such as dimers, trimers and oligomers, to form species of higher molar mass. Only at nearly complete conversions does the polymer form, as in polycondensation and in contrast to chain polymerization.[4]
A typical polyaddition is the formation of a polyurethane.
References
- ^ Jenkins, A. D.; Kratochvíl, P.; Stepto, R. F. T.; Suter, U. W. (1996-01-01). "Glossary of basic terms in polymer science (IUPAC Recommendations 1996. See definition 3.8)". Pure and Applied Chemistry. 68 (12): 2287–2311. doi:10.1351/pac199668122287. ISSN 0033-4545. S2CID 98774337.
- ^ "addition polymerization | chemical reaction | Britannica". www.britannica.com. Retrieved 2022-05-10.
- ^ "10.3: Addition Polymerization - One + One + One + ... Gives One!". Chemistry LibreTexts. 2019-05-26. Retrieved 2022-05-10.
- ^ Jenkins, A. D.; Kratochvíl, P.; Stepto, R. F. T.; Suter, U. W. (1996). "Glossary of basic terms in polymer science (IUPAC Recommendations 1996. See definition 3.6)" (PDF). Pure and Applied Chemistry. 68 (12): 2287–2311. doi:10.1351/pac199668122287. S2CID 98774337.
 | This article about polymer science is a stub. You can help Wikipedia by adding missing information. |
Content Disclaimer
Informasi ini disarikan dari Wikipedia dan disajikan kembali untuk tujuan edukasi. Konten tersedia di bawah lisensi CC BY-SA 3.0. Kami tidak bertanggung jawab atas ketidakakuratan data yang bersumber dari kontribusi publik tersebut.
- The information displayed on this website is sourced in part or in whole from Wikipedia and has been adapted for the purpose of restating it. We strive to provide accurate and relevant information, however:
- There is no guarantee of absolute accuracy. Wikipedia is an open, collaborative project that can be edited by anyone, so information is subject to change.
- It is not intended to constitute professional advice. The content displayed is for informational and educational purposes only. For important decisions (e.g., medical, legal, or financial), please consult a professional.
- Content copyright. Wikipedia is licensed under the Creative Commons Attribution-ShareAlike License (CC BY-SA). This means that content may be reused with appropriate attribution and shared under a similar license.
- Responsible use. Any risk arising from the use of information from this website is entirely the responsibility of the user.