Sucrose, Sorbitol & Glycerine for Polyol Manufacturing
Sucrose, sorbitol and glycerine are the high-functionality initiators behind rigid and semi-rigid polyether polyols. Ambizent supplies these raw materials to polyol manufacturers worldwide, individually or as a matched package, with a Certificate of Analysis on every shipment.
Behind every rigid, insulation-grade polyurethane foam is a polyol built from a high-functionality starter molecule. Sucrose, sorbitol and glycerine are the three most widely used initiators for that job — and Ambizent supplies all three to polyol manufacturers worldwide, individually or as a matched package alongside the amine initiators and other raw materials your formulation needs.
Why initiator functionality matters
Polyether polyols are made by reacting a starter molecule — the initiator — with alkylene oxides such as propylene oxide, building polyether chains outward from each of the initiator's hydroxyl (OH) groups. The number of OH groups on the initiator therefore sets the functionality of the resulting polyol, which in turn governs crosslink density: higher functionality gives the tightly crosslinked, rigid, thermally stable network that insulation-grade PUR and PIR foam depends on.
Sucrose, sorbitol and glycerine compared
Initiator
Hydroxyl groups
Typical role
Sucrose
8
High-functionality initiator for rigid, highly crosslinked insulation polyols
Sorbitol
6
High-functionality initiator, similar rigid-foam role to sucrose, often blended with it
Glycerine (Glycerol)
3
Lower-functionality initiator for semi-rigid or more flexible-leaning polyols, or blended in to fine-tune functionality and viscosity
Producers commonly blend two or three of these initiators — sometimes alongside an amine initiator such as O-TDA for higher reactivity — to land on the exact average functionality, viscosity and reactivity their target foam grade needs.
Applications
Rigid polyol synthesis — sucrose and sorbitol as high-functionality initiators for insulation-grade polyols.
Semi-rigid & flexible polyol synthesis — glycerine as a lower-functionality initiator, often blended with sucrose/sorbitol to tune the final polyol.
PIR/PUR insulation systems — high-functionality initiators drive the crosslink density fire-rated boards need.
Custom polyol formulation — supplied as a matched raw-material package for in-house polyol producers.
Typical grades & identification
Material
CAS number
Typical form
Sucrose
57-50-1
White crystalline solid, technical grade
Sorbitol
50-70-4
White crystalline solid or liquid (70% solution), technical grade
Why are sucrose and sorbitol used to make polyols?
Polyether polyols are made by reacting a starter molecule (the initiator) with alkylene oxides such as propylene oxide. The initiator's number of hydroxyl (OH) groups sets the functionality of the resulting polyol. Sucrose has 8 OH groups and sorbitol has 6, so both are used as high-functionality initiators for the highly crosslinked polyols that rigid, insulation-grade polyurethane foam needs.
What is glycerine's role compared with sucrose or sorbitol?
Glycerine (glycerol) has 3 OH groups, giving a lower-functionality initiator than sucrose or sorbitol. It is used on its own for semi-rigid or more flexible-leaning polyol grades, or blended with sucrose and/or sorbitol to fine-tune the average functionality and viscosity of a custom polyol blend.
Can I buy sucrose, sorbitol and glycerine as one package?
Yes. Ambizent can supply these as a matched raw-material package in the ratios your formulation requires, alongside any amine initiators (such as O-TDA) you also use, rather than sourcing each commodity separately from different suppliers.
What grade of sucrose/sorbitol/glycerine is needed for polyol production?
Industrial (technical) grade is standard for polyol manufacturing rather than food or pharmaceutical grade, though requirements vary by formulation and producer. Tell us your specification and we will source and quote accordingly, with a Certificate of Analysis on every shipment.
Do you supply these worldwide?
Yes. Ambizent supplies sucrose, sorbitol and glycerine to polyol and polyurethane manufacturers worldwide from our UAE base, with packaging, documentation and Incoterms handled end to end.
Let's Work Together
Sourcing raw materials for polyol production?
Tell us your required ratio of sucrose, sorbitol, glycerine (and any amine initiators) and destination port — we'll source and quote as a matched package.