Synthesis and Evaluation of a Water-Soluble Hyperbranched Polymer as Enhanced Oil Recovery Chemical

<table>(a) <sup>1</sup>H NMR spectrum of the hyperbranched polymer in D<sub>2</sub>O; (b) <sup>13</sup>C NMR spectrum of the hyperbranched polymer in D<sub>2</sub>O.</table>

Journal of Chemistry

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Figure 4

Figure 4: Synthesis and Evaluation of a Water-Soluble Hyperbranched Polymer as Enhanced Oil Recovery Chemical 