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4 mar 2023 · In this study, amorphized and depolymerized cellulose samples with an average degree of polymerization of less than 100 anhydroglucose units and a crystallinity index below 30% were made from microcrystalline cellulose using mechanical treatment and acid hydrolysis.
15 paź 2022 · In this work, short-polymer microcrystalline celluloses (SMCC) with an average polymerization degree between 29 and 70 AGU were produced with material yields of 95 % and above by combining a planetary ball mill pretreatment with mild acid hydrolysis.
28 sty 2011 · Different sources of celluloses from woody and non-woody biomass have been isolated and the DP has been frequently examined as a key parameter contributing to efficient biomass deconstruction. The isolation and derivatization/dissolution of cellulose are crucial steps in determining cellulose DP.
Typically, cellulose is a high-molecular-weight polymer. The chain length is expressed by the number of constituent glucose monomers in a polymer chain (i.e., degree of polymerization (DP)). The DP of cellulose varies from source to source and depends on the cellulose extraction processes.
Degree of polymerization (DP) is one of the most important structural properties of cellulose. Cellulose chain length expressed as cellulose DP can affect the mechanical properties of composite materials and paper products, the solubility of cellulose in a given solvent, and the efficiency of enzymatic hydrolysis of lignocellulosic biomass.
One of its fundamental structural characteristics as a polymer is the degree of polymerization (DP), i.e. the number of covalently linked glucose rings. Mechanical properties and susceptibility to depolymerization have been reported to depend on DP (Shlieout et al. 2002; Trache et al. 2016).
14 lut 2018 · Hydrolysis of cellulose and K26 mix-milled substrate at 453 K for 20 min converted 93% of cellulose to soluble products. β-1,4-Glucans with degree of polymerization 2–6 units were the primary product (70% yield) and glucose yield was 20%.
