Citation: Hong Hua WANG, Jin Ying DING, Tian Lu CHEN. Cyclic Oligomers of Phenolphthalein Polyarylene Ether Sulfone (Ketone): Preparation Through Cyclo-depolymerisation of Corresponding Polymers[J]. Chinese Chemical Letters, ;2004, 15(11): 1377-1379. shu

Cyclic Oligomers of Phenolphthalein Polyarylene Ether Sulfone (Ketone): Preparation Through Cyclo-depolymerisation of Corresponding Polymers

State key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry. Chinese Academy of Sciences, Changchun 130022

Received Date: 17 September 2003

Cyclic oligomers of phenolphthalein polyarylene ether sulfone(ketone) were prepared through cyclo-depolymerisation of corresponding polymers using CsF as the catalyst in dipolar aprotic solvent DMAc and DMF, and a family of macrocycles containing from dimer up to at least heptamer were confirmed by GPC, HPLC and MALDI-TOF-MS. The yields of cyclics get as high as 86.3% and 87.9% respectively.
- Cyclic oligomer,
- phenolphthalein polyether sulfone(ketone),
- cyclodepolymerisation,
- cesium fluoride
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