Sigma-Aldrich may provide different particle size and different molecular weight polymers

Polyethylene (PE) Nanoplastics:

• Cospheric LLC: Specializes in manufacturing polyethylene nanospheres ranging from 200nm to 9,900nm. These particles are available in dry powder form and are commonly used in environmental studies as microplastic simulants.Cospheric
• Goodfellow: Offers a variety of polyethylene microspheres and nanoplastics suitable for research purposes.
• Alfa Chemistry: Provides a range of nanomaterials, including polyethylene nanoplastics, catering to various research and industrial needs.

Polypropylene (PP) Nanoplastics:

While suppliers specifically listing polypropylene nanoplastics are limited, several companies offer polypropylene resins and microspheres that may meet your requirements:

• Nexeo Plastics: Distributes polypropylene resins from top suppliers, including Borealis, LyondellBasell, and Braskem. Their products cater to various industries, and they may offer materials suitable for producing nanoplastics.Nexeo Plastics
• KW Plastics: Manufactures versatile polypropylene resins tested to meet ASTM standards, suitable for injection molding and other applications. While they primarily offer larger-scale resins, contacting them could provide insights into obtaining finer polypropylene materials.KW Plastics
• Amco Polymers: Supplies a range of polypropylene materials known for good mechanical properties, heat resistance, and chemical resistance. They may have options suitable for your needs.Amco Polymers

Thank you Dr Kishore Kumar Sriramoju. I have tried to search from Sigma-Aldrich, they mainly supply for polystyrene nanoplastics. By the way, thank you for the suggestions, I believe that this will be helpful if there is any studies for PS NPs.

Thank you A.Prof Dr. Shucayat Zeynalov, I will have a look for it.

Come on. Good luck