Synthesis of Poly( n -hexyl isocyanate) by Controlled Anionic Polymerization in the Presence of NaBPh 4
✍ Scribed by Shin, Yeong-Deuk; Kim, Sun-Young; Ahn, Jun-Hwan; Lee, Jae-Suk
- Book ID
- 127197929
- Publisher
- American Chemical Society
- Year
- 2001
- Tongue
- English
- Weight
- 40 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0024-9297
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📜 SIMILAR VOLUMES
Poly(methylmethacrylate)-poly(4-vinylpyridine) diblock copolymers were synthesized by sequential anionic polymerization, l,l-diphenyl-3-methylpentyllithium was used as initiator and LiCI was added to the system as ligand to modify both initiator and active chain end in order to avoid side reactions.
## Abstract Anionic polymerizations of __N__‐(4‐vinylbenzoyl)‐__N__′‐methylpiperazine (3a) and __N__‐(4‐vinylbenzoyl)morpholine (3b) were carried out in tetrahydrofuran at −78°C with oligo(α‐methylstyryl)‐dilithium, ‐disodium, and ‐dipotassium. The polymerizations of both 3a and 3b proceeded quanti