Synthesis and applications of a novel supramolecular polymer network with multiple H-bonded melamine pendants and uracil crosslinkers
作者:Dhananjaya Patra、Mohan Ramesh、Duryodhan Sahu、Harihara Padhy、Chih-Wei Chu、Kung-Hwa Wei、Hong-Cheu Lin
DOI:10.1002/pola.25853
日期:2012.3.1
conjugated main‐chain copolymer (PBT) consisting of bithiazole, dithieno[3,2‐b:2′,3′‐d]pyrroles (DTP), and pendent melamine units was synthesized by Stille polymerization, which can be hydrogen‐bonded (H‐bonded) with proper molar amounts of bi‐functional π‐conjugated crosslinker F (i.e., two uracil motifs covalently attached to a fluorene core through triple bonds symmetrically) to develop a novel supramolecular
由Stillhi聚合合成了由噻唑,双噻吩并[3,2-b:2',3'-d]吡咯(DTP)和侧链三聚氰胺单元组成的共轭主链共聚物(PBT),可以进行氢键键合(H键)与适当摩尔量的双功能π共轭交联剂F(即,两个尿嘧啶基序通过三键对称地共价连接到芴核上)以开发新的超分子聚合物网络(PBT / F)。研究了多种氢键对聚合物PBT和氢键键合聚合物网络PBT / F的光收集能力,HOMO能级和光伏性能的影响。之间的超分子聚合物网络(PBT / F)的形成。通过FTIR和XRD测量确认PBT和F。由于更强的光的吸收,降低HOMO能级,和H-结合的聚合物网络更高的结晶度的PBT / F,含有该太阳能电池装置PBT / F显示出更好的光伏特性比含聚合物PBT。初步结果表明,含有1:1重量比的PBT / F和[6,6]-苯基C 71丁酸甲酯(PC 71 BM)的太阳能电池装置的最佳功率转换效率(PCE)值为0.86