Dr Samuel Ho
Polymer Solutions Engineer, AGC Inc.
Samuel Ho joined AGC’s Polyurethane Product Group as a Polymer Solutions Engineer in 2018.
Current, he is focusing on downstream formulations and applications of Silane Terminated Polyethers.
His other projects include polyether end-group modifications.
Prior to joining AGC, Samuel obtained his PhD in Chemistry from a joint programme between Nanyang Technological University (Singapore) and École polytechnique (France).
Tailoring STP Properties: Leveraging Monofunctional Polyether Polyols
Polyether polyols are used as raw materials across a wide range of polyurethane (PU) applications including various foams products, insulation, adhesive and sealants.
AGC produces High Molecular Weight Polyether Polyols with tailored functionality using AGC’s proprietary catalyst technology. These polyols have a narrow molecular weight distribution due to the suppression of by-product formation. Compared to conventional polyols, this results in better mechanical properties like durability and workability. Using these High Molecular Weight Polyether Polyols as raw materials for adhesives and sealants for the synthesis of Silane Terminated Polyethers (STPs), would show enhanced mechanical performance and improved workabilty.
AGC also produces Monofunctional Polyether Polyols (Monols) using the proprietary catalyst technology. When incorporated during synthesis, these Monols allow the tuning of both uncured and cured properties of STPs.
The extend of these changes depends on both the molecular weight and the amount of Monol added. In practice, this improves mixing, pumping and allows easy control of rheology. Even at low doses, these Monols improve extrudability while maintaining hardness and elongation. This provides the potential for reducing the use of plasticizers and extending usable lifetime.
By reducing of reactive-site concentration, this increases open time while reducing modulus of the cured compound.
As a result, this approach serves as a tool to dictate and control specific properties of the seal
Breakout Session VIII – SMP Formulation: From Design to Application – 17 September 2026 – 11:30 – 12:00 – Room Mountbatten – F6