Decoding the Morphological Diversity in Two Dimensional Crystalline Porous Polymers by Core Planarity Modulation. Issue 27 (8th March 2016) - Halder, Arjun
Abstract: Two new chemically stable triazine‐ and phenyl‐core‐based crystalline porous polymers (CPPs) have been synthesized using a single‐step template‐free solvothermal route. Unique morphological diversities were observed for these CPPs [2, 3‐DhaTta (ribbon) and 2, 3‐DhaTab (hollow sphere)] by simply altering the linker planarity. A detailed time‐dependent study established a significant correlation between the molecular level structures of building blocks with the morphology of CPPs. Moreover, a DFT study was done for calculating the interlayer stacking energy, which revealed that the extent of stacking efficiency is responsible for governing the morphological diversity in these CPPs. Abstract : Two self‐templated, morphologically diverse (ribbon and hollow sphere) crystalline porous polymers (CPPs) are characterized. Surprisingly, these polymers reflect how a slight change in torsion angles of the linker core dramatically affects the overall crystallinity, surface area, and the final morphology in the CPPs.