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Association molecular weight distributions after

Figure 9. Apparent molecular weight distributions representing a homologous series of kraft lignin samples secured by desalting after association and dissociation in aqueous alkaline solutions for (1) 300 h, (2) 144 h and (3) 48 h at 170 gL1 in 1.0 M ionic strength aqueous 0.40 M NaOH (4) 0 h (5) 144 h and (6) 644 h at 0.50 gL 1 in aqueous 0.10 M NaOH. (Sephadex GlOO/aqueous 0.10 M NaOH elution profiles monitored at 320 nm.)... Figure 9. Apparent molecular weight distributions representing a homologous series of kraft lignin samples secured by desalting after association and dissociation in aqueous alkaline solutions for (1) 300 h, (2) 144 h and (3) 48 h at 170 gL1 in 1.0 M ionic strength aqueous 0.40 M NaOH (4) 0 h (5) 144 h and (6) 644 h at 0.50 gL 1 in aqueous 0.10 M NaOH. (Sephadex GlOO/aqueous 0.10 M NaOH elution profiles monitored at 320 nm.)...
Description Catalyst or metallocene is injected directly into the reactor as received in the case of Ziegler-Natta or after activation for chromium catalyst. Chromium catalysts give broad molecular-weight products and supported Ziegler-Natta catalysts produce narrow molecular-weight distribution products. The BP metallocene catalysts offer exceptional strength and clarity normally associated with metallocenes but combined with easy processing. [Pg.86]

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Association molecular weight distributions

Distribution weight

Molecular distribution

Molecular weight distribution

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