以前具有单烷基化联噻吩的聚合物的途径是通过氧化或AB型交叉偶联聚合反应合成单烷基-2,2'-联噻吩单体。最终的聚合物区域化学会影响聚合物侧链的位置和方向。相反,AABB型交叉偶联聚合可以控制侧链的位置,在某些情况下还可以控制侧链的方向。为了研究这种控制方式如何影响聚合物性能,通过2,5-双(三甲基锡烷基)噻吩与不同单体的Stille AABB型缩聚反应合成了两种聚(单癸基-2,2'-联噻吩)聚合物。烷基侧链位于每一个其他的噻吩上,但是聚合物1由头对尾和头对头二联体组成,而聚合物2仅由头对头二联体组成。1 H NMR,13 C NMR和异核单量子相关光谱用于确认和对比聚合物的区域化学。使用紫外可见光谱,差示扫描量热法和掠入射X射线衍射分析了这两种聚合物的物理性质。发现聚合物2在溶液中的凝集作用明显大于1,并且显示出不同的热性质。但是,聚合物1和2的薄膜性质非常相似,具有几乎相同的UV-vis
Process for the polymerisation of thiophene or selenophene derivatives
申请人:Merck Patent GmbH
公开号:EP1754736B1
公开(公告)日:2011-05-11
US8501902B2
申请人:——
公开号:US8501902B2
公开(公告)日:2013-08-06
Using bis(pinacolato)diboron to improve the quality of regioregular conjugated co-polymers
作者:Frank Brouwer、Jan Alma、Hennie Valkenier、Thomas P. Voortman、Jorrit Hillebrand、Ryan C. Chiechi、Jan C. Hummelen
DOI:10.1039/c0jm02359k
日期:——
We demonstrate the use of bis(pinacolato)diboron to directly polymerize symmetric, bisbromo, thiophene-based monomers via a Suzuki homo-polymerization to form co-polymers in less steps than the corresponding co-polymerization. We compare this method to the commonly used Stille co-polymerization by preparing four thiophene-based co-polymers using both methods. We use MALDI-TOF mass spectrometry to show that this new method produces high-quality, uniform polymers with narrow distributions of end-groups. By varying the electronegativity of the monomers, we demonstrate rudimentary control over these end-groups, forming either bis-H-, mono-H-mono-Br-, or bis-Br-terminated polymers in order of increasing electronegativity.
A comparison of the properties of two structurally equivalent but regiochemically different mono‐alkylated polybithiophenes prepared through AABB‐type stille polycondensation
作者:Pamela M. Lundin、Gaurav Giri、Zhenan Bao
DOI:10.1002/pola.26448
日期:2013.2.15
cases the orientation of the side‐chains. To study how this control can impact polymer properties, two poly(monodecyl‐2,2′‐bithiophene) polymers have been synthesized throughStilleAABB‐typepolycondensations of 2,5‐bis(trimethylstannyl)thiophene with different monomers. The alkyl side‐chains are located on every other thiophene, but polymer 1 consists of both head‐to‐tail and head‐to‐head dyads, whereas
以前具有单烷基化联噻吩的聚合物的途径是通过氧化或AB型交叉偶联聚合反应合成单烷基-2,2'-联噻吩单体。最终的聚合物区域化学会影响聚合物侧链的位置和方向。相反,AABB型交叉偶联聚合可以控制侧链的位置,在某些情况下还可以控制侧链的方向。为了研究这种控制方式如何影响聚合物性能,通过2,5-双(三甲基锡烷基)噻吩与不同单体的Stille AABB型缩聚反应合成了两种聚(单癸基-2,2'-联噻吩)聚合物。烷基侧链位于每一个其他的噻吩上,但是聚合物1由头对尾和头对头二联体组成,而聚合物2仅由头对头二联体组成。1 H NMR,13 C NMR和异核单量子相关光谱用于确认和对比聚合物的区域化学。使用紫外可见光谱,差示扫描量热法和掠入射X射线衍射分析了这两种聚合物的物理性质。发现聚合物2在溶液中的凝集作用明显大于1,并且显示出不同的热性质。但是,聚合物1和2的薄膜性质非常相似,具有几乎相同的UV-vis