Organic Catalysis for Polymerisation by Dove Andrew;Sardon Haritz;Naumann Stefan; & Haritz Sardon & Stefan Naumann

Author:Dove, Andrew;Sardon, Haritz;Naumann, Stefan; & Haritz Sardon & Stefan Naumann
Language: eng
Format: epub
ISBN: 9781788016797
Publisher: Book Network Int'l Limited trading as NBN International (NBNi)
Published: 2018-11-01T16:00:00+00:00

Figure 7.38 Amide-containing 6CC and MTC-PF favouring acidic organocatalysis for ROP.

From the viewpoint of bio-based production, glycerol-based 6CCs are an alternative including those derived from dihydroxyacetone (DHA), as shown in Figure 7.39.199 In addition, there are sugar-fused 6CCs that are derived from carbohydrates such as glucose, mannose, xylose, deoxyribose, and their derivatives.200–202 Recent advance in the cyclization technologies and CO2 chemistry allows these sugar-based polycarbonates to fully comprise natural feedstock (carbohydrates and CO2).168 These sugar-based polycarbonates exhibit high glass transition temperature (Tg) ranging from over 58 to 152 °C, depending on substituents on the fused sugar ring that contribute to restricting chain mobility.200,201,203 Thus, these sugar-based polycarbonates are expected to be applied in a new class of engineering polycarbonates as with poly(CHC) and poly(CHDC) (Figure 7.36).

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