Kumar Amit, Tateyama Seiji, Yasaki Katsuaki, Ali Mohammad Asif, Takaya Naoki, Singh Rajeev, Kaneko Tatsuo
School of Materials Science, Japan Advanced Institute of Science and Technology (JAIST), 1-1 Asahidai, Nomi-shi, Ishikawa 923-1292, Japan; Material/Organometallics Laboratory, Department of Chemistry, ARSD College, University of Delhi, Delhi 110021, India.
School of Materials Science, Japan Advanced Institute of Science and Technology (JAIST), 1-1 Asahidai, Nomi-shi, Ishikawa 923-1292, Japan; JST, ALCA, Japan.
Data Brief. 2016 Feb 9;7:123-8. doi: 10.1016/j.dib.2016.02.006. eCollection 2016 Jun.
Structural investigation of polymers by various available analytical methods is important in order to correlate the structure with polymer properties for which understanding of polymer structure is very important factor. The data presented here in this article shows the (1)H NMR spectra used for the characterization of prepared poly(amic acid)s (PAAs). It is often difficult to assigns the peak in NMR of polymers due to its complexity. Data presented here helps in assigning the proton peak in complex NMR of PAAs prepared from aromatic diamines. Further functionality in polymer chains can be confirmed by FT-IR spectra. Change in functionality during some reaction or process can be monitored by disappearance or appearance of peaks in FT-IR. The complete imidization of PAAs to Polyimides (PIs) is difficult to analyze because of the chemical stability i.e. insolubility of PIs in most of the solvent therefore the completion of imidization process was confirmed using FTIR.
为了将聚合物结构与聚合物性能相关联，采用各种可用的分析方法对聚合物进行结构研究非常重要，因为了解聚合物结构是一个非常重要的因素。本文给出的数据展示了用于表征制备的聚酰胺酸（PAA）的¹H NMR谱。由于聚合物核磁共振谱的复杂性，常常难以对其峰进行归属。这里给出的数据有助于对由芳族二胺制备的聚酰胺酸复杂核磁共振谱中的质子峰进行归属。聚合物链中的进一步官能团可以通过傅里叶变换红外光谱（FT-IR）来确认。在某些反应或过程中官能团的变化可以通过FT-IR中峰的消失或出现来监测。由于聚酰亚胺（PI）的化学稳定性，即其在大多数溶剂中的不溶性，聚酰胺酸完全酰亚胺化为聚酰亚胺很难分析，因此使用FTIR确认了酰亚胺化过程的完成。
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