TEMPO Containing Polynorbornene Block Copolymers Prepared via ROMP and Their use as Scaffolds in Sol/Gel-Process

被引：4

作者：

Kir, Onur ^{[1
]}

Huesing, Nicola ^{[2
]}

Enke, Dirk ^{[3
]}

Binder, Wolfgang H. ^{[1
]}

机构：

[1] Univ Halle Wittenberg, Fac Nat Sci 2, Inst Chem Macromol Chem, TGZ 3, Heinrich Damerow Str 4, D-06120 Halle, Saale, Germany

[2] Uni Ulm, Inst Anorganische Chemie 1, Albert Einstein Alle, D-89081 Ulm, Germany

[3] Univ Halle Wittenberg, Inst Chem Tech, D-06099 Halle, Germany

来源：

OLEFIN METATHESIS | 2010年 / 293卷

关键词：

block copolymers; ROMP; sol/gel; TEMPO; titanium dioxide; OLEFIN METATHESIS; CATALYSTS;

D O I：

10.1002/masy.200900023

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Block copolymers (B50T30 and B21T30) containing free nitroxide-radicals with two different chain lengths derived from the monomers (+/-) endo,exo-bicyclo[2,2,1]-hept-5-ene-2,3-dicarboxylic acid-bis-O-tert.-butyl ester (monomer B) and (+/-)endo,exo-bicyclo[2,2,1]-hept-5-ene-2,3-dicarboxylic acid-bis-O-2,2,6,6-piperidinoxyl-ester (monomer T) were polymerized via ring opening metathesis polymerization (ROMP). The ter.-butyl-moiety in block B could then be hydrolyzed to obtain amphiphilic block copolymers which were used as scaffolds in subsequent sol/gel-process. The resulting block copolymers were analyzed via small angle X-Ray scattering (SAXS) to investigate microphase separation and the sol/gel products were analyzed by X-Ray Diffraction (XRD) to prove the formation of ordered TiO2 crystals.

引用

页码：67 / +

页数：2

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