Figure 3: Mass spectra of early stages of polymerization. | Nature Communications

Figure 3: Mass spectra of early stages of polymerization.

From: Controlled multi-vinyl monomer homopolymerization through vinyl oligomer combination as a universal approach to hyperbranched architectures

Figure 3

Mass spectrum for the samples from early period of polymerization of HB polyBDA, showing the chemical composition within the polymerization system. (a) Mass spectrum of 0.5 h sample in Fig. 2a; (b) mass spectrum of 1 h sample in Fig. 2a. The number gap between each major peak is exactly the molecular weight of BDA, which indicates that the molecular weight increases by 1 monomer unit and the vinyl groups of the divinyl monomer are mainly consumed on one side instead of on both sides at the beginning period.

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