Can anyone explain how to identify the presence of blocks( Unit of Block monomers- AAAABBBAAA) through NMR spectra or Is there any other characterization available?
http://www.chem.pku.edu.cn/page/wanxh/pdf/05-05.pdf
http://onlinelibrary.wiley.com/doi/10.1002/marc.1982.030031009/abstract
http://www.scielo.org.mx/pdf/jmcs/v55n2/v55n2a7.pdf
http://link.springer.com/article/10.1007%2Fs00289-006-0577-4?LI=true
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