Cyclic oligomers obtained by polymerization of 2,2-dimethyltrimethylene carbonate in the presence of ϵ-caprolactam
✍ Scribed by Helmut Keul; Thomas Vahlenkamp; Hartwig Höcker
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 237 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0014-3057
No coin nor oath required. For personal study only.
✦ Synopsis
The reaction of 2,2-dimethyltrimethylene carbonate (DTC) and E-caprolactam (EClam) in toluene with s-BuLi as initiator leads to cyclic oligomers containing one EClam moiety and n DTC units (n = 2-10). A mechanism for the formation of the oligomers is proposed.
📜 SIMILAR VOLUMES
Under the influence of triethyloxonium tetrafluoroborate in methylene chloride, cis-and trans-2,3-dimethylthiirane are transformed to their corresponding polymers almost instantaneously (at temperatures between 0 and 20 °) but within a few hours these polymers completely degrade to form a mixture of
## Abstract The radical polymerization behavior of vinyl monomers, such as styrene, methyl methacrylate (MMA), and vinyl acetate (VAc), in the presence of carbon black initiated by benzoyl peroxide (BPO) and 2,2'‐azobisisobutyronitrile (AIBN) in ionic liquid (IL) was compared with those in toluene.
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v
## Abstract Poly(butylene terephthalate) nanocomposites with organically modified montmorillonites have been prepared by __in‐situ__ ring opening polymerization of PBT cyclic oligomers. High molecular weight polymers can be obtained by choosing the proper polymerization conditions and catalyst in v