Mechanism of the polymerization of lactams in the presence of water
β Scribed by A.K. Bonetskaya; O.B. Salamatina; T.V. Sopova; N.S. Yenikolopyan
- Book ID
- 118359819
- Publisher
- Elsevier Science
- Year
- 1972
- Weight
- 333 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0032-3950
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Polymerization of hexamethylcyclotrisiloxane in at 30ΓC, initiated by triΓ½ic (D 3 ) CH 2 Cl 2 acid (TfOH) was studied in the presence of siloxanediols or which polycondense (HD 2 OH HD x OH) giving water, or in the presence of water alone for comparison. D represents a siloxane unit OSiMe 2 . In the
Polycondensation of tetramethyldisiloxanediol (HD,OH) by triflic acid (TfOH) in the presence of octamethylcyclotetrasiloxane (D,) has been studied at 30Β°C in CH,Cl, solution and in bulk at 80Β°C. The condensation follows a similar pathway, at a similar rate, in the presence or in the absence of D,. L