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Senkovskyy, V. ; Senkovska, I. ; Kiriy, A.
Surface-initiated synthesis of conjugated microporous polymers: chain-growth kumada catalyst-transfer polycondensation at work

Most of conjugated microporous polymers (CMPs) prepared to date are poorly processable, intractable solids. The immobilization of CMPs onto various surfaces is strongly desirable for many applications, such as for gas storage and separation, heterogeneous catalysis, and so forth. However, the preparation of thin porous films remains a challenging task. This Letter reports Ni-catalyzed surface-initiated Kumada catalyst-transfer polycondensation of a tetrafunctional thiophene-based (AB) 2-monomer from organosilica microparticles leading to microparticles covered by thin-film (30 nm) layers of the CMP. A sample of unbound CMP was also prepared by a bulk polymerization of the same monomer. Thus-obtained CMP possesses a relatively high specific surface area of 463 m2 g–1. The porosity of the immobilized polymer is somewhat lower with a specific surface area of 123 m2 g–1.

Quelle
ACS Macro Letters / American Chemical Society 1, 494-498

DOI
http://dx.doi.org/10.1021/mz200204g

Erschienen am
May 2012
 
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