## Abstract The polymerization of 2‐acetoxymethyl‐2‐alkyltrimethylene carbonates (alkyl = methyl: AMTC, alkyl = ethyl: AETC) and of 2‐methoxycarbonyl‐2‐methyltrimethylene carbonate (MMTC) in toluene with __sec__‐butyllithium as initiator results in the respective polymer with yields between 78% and
Synthesis and properties of an ionic polyacetylene by the activated polymerization of 2-ethynylpyridine with the ring-opening of propiolactone
✍ Scribed by Yeong-Soon Gal; Sung-Ho Jin; Young-Il Park; Jong-Wook Park; Won Seok Lyoo; Kwon-Taek Lim
- Book ID
- 116899292
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 551 KB
- Volume
- 161
- Category
- Article
- ISSN
- 0379-6779
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## Abstract The eight‐shaped poly(ethylene oxide) (PEO) is synthesized by a combination of Glaser coupling with ring‐opening polymerization (ROP). Firstly, the star‐shaped **(PEO‐OH)**~**4**~ is synthesized by ROP of ethylene oxide (EO) using pentaerythritol as an initiator and diphenylmethyl potas
Polymerizations of propylene oxide (PO) have been carried out by using double metal cyanide (DMC) catalyst prepared by reacting ZnCl 2 and K 3 [Co(CN) 6 ] in the presence of tert-butyl alcohol as a complexing agents. The DMC catalyst of the molecular formula, Zn 2.3 Cl 1.0 [Co(CN) 6 ] 1.0 Á2.0 t BuO