Poly(3,5-dimethylstyrene)

polymer

Poly(3,5-dimethylstyrene) is a substituted polystyrene polymer featuring methyl groups at the 3 and 5 positions on the aromatic ring, creating a stiffer backbone and higher glass transition temperature than unmodified polystyrene. This material is primarily encountered in research and specialty applications where enhanced thermal stability and rigidity are required without sacrificing the processing advantages of styrene-based polymers. It represents the broader family of engineered polystyrene derivatives designed to extend service temperature limits and improve dimensional stability compared to commodity polystyrene grades.

high-temperature polymer researchthermally stable resinsspecialty engineering polymersstructural resin developmentadvanced composite matriceslaboratory/experimental applications

Compliance & Regulations

?UL 94?ITAR?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Glass Transition Temperature(Tg)	377	K	—

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Regulatory Screening

Environmental

Export Control

Safety & Biocompatibility

Quality & Standards

Industry-Specific

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.