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On the formation of diphenylmethane structures in lignin under Kraft, soda and EMCC pulping conditions

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Figure

Table 1. Showing the actual amounts of DPMa structurespresent in MWLb before and after the addition offormaldehydec under homogeneous kraft pulping conditions.d
Table 2 clearly demonstrate the efficiency of formation of
Fig. 2. Kinetic data showing the development of the actual amounts of 4-structures on softwood milled wood lignin under homogeneous kraft pulping conditions at 120°C in the presence and absence ofO-5′,5,5′ biphenolic and diphenylmethane phenolic hydroxylfo

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