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Synthesis and characterization of poly(ether ketone ketone) (PEKK)/sodium sulfonated poly(arylene ether ketone) (S‐PAEK) block copolymers by Daoji Gan; Shiqiang Lu; Zhijian Wang is a Materials Science article available to read on EtoBox.
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## Abstract A series of well‐defined poly(ether ketone ketone) (PEKK)/sodium sulfonated poly(aryl ether ketone) (S‐PAEK) block copolymers of high molecular weights was prepared by direct nucleophilic polymerization of hydroquinone with sodium 5,5′‐carbonylbis(2‐fluorobenzene sulfonate) (**1**) and PEKK oligomer (**2**). Varying the ratio of **1** to **2** used in polymerization can be used to control the degree of polymer sulfonation, which correspondingly affects the polymer solubility in solvents. Increasing content of **1** in the copolymers, slightly decreases their thermal stability which is nevertheless thermally stable up to 400 °C. Two __T__~g~ values, or one broad __T__~g~, were observed in the DSC measurements of the block copolymers, indicating the existence of phase separation, which was further proved by phase‐separated morphologies as shown in atomic force microscopy images. © 2001 Society of Chemical Industry
Who reads Synthesis and characterization of poly(ether ketone ketone) (PEKK)/sodium sulfonated poly(arylene ether ketone) (S‐PAEK) block copolymers?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- Daoji Gan; Shiqiang Lu; Zhijian Wang
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0959-8103)
- Published
- 2001
- Language
- EN
- Field
- Materials Science (Physical Sciences)