Academic Writing Enhancement: Polishing a Paragraph on Covalent Cross-Linked Network and Boronic Esters

{'title':'Below is a paragraph from an academic paper. Polish the writing to meet the academic style, improve the spelling, grammar, clarity, concision and overall readability. When necessary, rewrite the whole sentence. Furthermore, list all modification and explain the reasons to do so in markdown table.\n\nTo construct the covalent cross-linked network and introduce dynamic boronic esters, the cross-linker BDB was synthesized and the chemical structure was confirmed by 1H NMR as shown in Figure 3b. The peaks around 1.5 ppm belong to mercaptol groups. The peaks at 4.2 ppm, 4.5 ppm, 4.7 ppm and 7.8 ppm demonstrated the boronic esters were obtained.','content':'| Original Sentence | Modified Sentence | Modification Reason | |-------------------|-------------------|---------------------| | To construct the covalent cross-linked network and introduce dynamic boronic esters, the cross-linker BDB was synthesized and the chemical structure was confirmed by 1H NMR as shown in Figure 3b. | The cross-linker BDB was synthesized to construct a covalent cross-linked network and introduce dynamic boronic esters. The chemical structure was confirmed by 1H NMR, as depicted in Figure 3b. | - Clarified the purpose of synthesizing BDB before mentioning its confirmation by 1H NMR. \n - Used more concise language to improve readability. | | The peaks around 1.5 ppm belong to mercaptol groups. | Peaks around 1.5 ppm correspond to mercaptol groups. | Simplified and clarified the sentence. | | The peaks at 4.2 ppm, 4.5 ppm, 4.7 ppm and 7.8 ppm demonstrated the boronic esters were obtained. | Peaks at 4.2 ppm, 4.5 ppm, 4.7 ppm, and 7.8 ppm indicate the presence of boronic esters. | Replaced 'demonstrated' with 'indicate' for a more appropriate and concise word choice. |