Forming layered conjugated porous BBL structures†,Polymer Chemistry

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Forming layered conjugated porous BBL structures†
Polymer Chemistry ( IF 4.1 ) Pub Date : 2019-06-28 00:00:00 , DOI: 10.1039/c9py00840c
Sun-Hee Shin _{1,

2,

3,

4} , Hyuk-Jun Noh _{1,

2,

3,

4} , Young-Hyun Kim _{1,

2,

3,

4} , Yoon-Kwang Im _{1,

2,

3,

4} , Javeed Mahmood _{1,

2,

3,

4} , Jong-Beom Baek _{1,

2,

3,

4}

Affiliation

One-dimensional (1D) ladder-like poly(benzoimidazobenzophenanthrolines) (BBLs) have attracted great interest due to their outstanding features, including thermal and chemical stability, electrical conductivity, and optical and electronic properties. Nevertheless, layered conjugated porous BBL structures have not yet been reported to date. Here, we introduce two-dimensional (2D) layered BBL structures via the polycondensation of mellitic anhydride (MTA) as an A₃ monomer with 1,2,4,5-tetraaminobenzene (TAB) as the B₂ monomer, or hexaaminobenzene (HAB) as the B₃ monomer in polyphosphoric acid (PPA). The porous 2D BBL network structures are constructed of robust fused aromatic rings and thus exhibit high thermal stability and high Brunauer–Emmett–Teller (BET) surface areas with different pore diameters and permanent microporosities. The 2D BBL networks demonstrated high gas uptake capacities for hydrogen (H₂, 1.65 wt% at 77 K, 1 bar) and carbon dioxide (CO₂, 15.6 wt% at 273 K, 1 bar) with unusually high Q_st values.

中文翻译：

形成分层的共轭多孔BBL结构†

一维（1D）梯状聚（苯并咪唑并苯并菲咯啉）（BBL）由于其出色的特性（包括热和化学稳定性，电导率以及光学和电子特性）而引起了人们的极大兴趣。然而，迄今为止尚未报道层状共轭多孔BBL结构。在这里，我们通过苯乙酸酐（MTA）作为A ₃单体与1,2,4,5-四氨基苯（TAB）作为B ₂单体或六氨基苯（HAB ）的缩聚作用来引入二维（2D）层状BBL结构）作为B ₃多磷酸（PPA）中的单体。多孔的二维BBL网络结构由坚固的稠合芳环构成，因此具有高的热稳定性和高的Brunauer-Emmett-Teller（BET）表面积，并具有不同的孔径和永久的微孔率。2D BBL网络显示出对氢气（H ₂，在77 K，1 bar下为1.65 wt％）和二氧化碳（CO ₂在273 K，1 bar上15.6 wt％）的高气体吸收能力，并且具有很高的Q _st值。

更新日期：2019-06-28

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