Diacetylenes in polymeric systems

Ogawa, Teiichiro

doi:10.1016/0079-6700(95)00013-6

Cited by 92 publications

(58 citation statements)

References 57 publications

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“…Recently, the Glaser coupling reaction between alkyne and alkyne groups has been widely used in organic [27] and polymer chemistry. [28][29][30] It not only showed high efficiency but also provided the mild reaction conditions and simple operation. Using this method, we had previously successfully synthesized A 2 B 2 star-shaped copolymers [31] and cyclic homo-PS or PEO polymers.…”

Section: Introductionmentioning

confidence: 96%

Synthesis of Eight‐shaped Poly(ethylene oxide) by the Combination of Glaser Coupling with Ring‐opening Polymerization

Wang

Fan

et al. 2011

Macromol. Rapid Commun.

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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 potassium (DPMK) as a deprotonated agent, and then the alkyne group is introduced onto the PEO arm-end to give (PEO-Alkyne)(4) in a NaH/tetrahydrofuran (THF) system. The intramolecular cyclization is carried out by a Glaser coupling reaction in a pyridine/CuBr/N,N,N',N",N"-pentamethyldiethylenetriamine (PMDETA) system at room temperature in an air atmosphere, and eight-shaped PEO was formed with high efficiency (almost 100%). The target polymers and intermediates were well characterized by SEC, MALDI-TOF MS, (1)H NMR and FT-IR in detail.

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Section: Introductionmentioning

confidence: 96%

Synthesis of Eight‐shaped Poly(ethylene oxide) by the Combination of Glaser Coupling with Ring‐opening Polymerization

Wang

Fan

et al. 2011

Macromol. Rapid Commun.

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“…After irradiation, materials of this kind have desirable properties such as very low water‐absorption, high resistance towards organic solvents and good adhesion. Because of these features, main‐chain diacetylene polymers have been the subject of many application studies 3, 4. Foremost focus has been directed so far on polymers having high dimensional, thermal and oxidative stability.…”

Section: Introductionmentioning

confidence: 99%

Polysiloxanes containing crosslinkable diacetylene units in the main chain

Boileau

Bouteiller

Kowalewska

2003

Polymer International

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The oxidative coupling of telechelic [2‐(propyn‐1)oxyethyl]oxypropyl‐terminated polydimethylsiloxanes, with the use of copper (I) chloride/TMEDA complex as the coupling catalyst, is described. The results of the studies on the influence of the reaction parameters (the catalyst concentration, the oxygen flow‐rate and the nature of the solvent) are presented. UV curing of the polymers obtained in the course of the oxidative coupling is reported Copyright © 2003 Society of Chemical Industry

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“…One is the photoinduced or thermally induced polymerization of 1,3-diynes, 6,7 and the other is the cyclopolymerization of 1,6-hep-tadiynes. 8 The former provides widely conjugated polymers with well-ordered microstructures that contribute to their excellent characteristics as nonlinear optical materials.…”

Section: Introductionmentioning

confidence: 99%