Poly(4-ethoxystyrene)

polymer

Poly(4-ethoxystyrene) is a functionalized polystyrene derivative in which ethoxy (-OC₂H₅) groups are pendant substituents on the aromatic ring, belonging to the class of aromatic vinyl polymers. This material is primarily of research and specialty interest rather than high-volume industrial production, valued for its potential to serve as a precursor or functional polymer in synthesis, coating formulations, and polymer blending applications where the ethoxy side groups can enable chemical modification, improved solvent compatibility, or enhanced interfacial properties. Engineers and chemists select this material when conventional polystyrene lacks sufficient polarity, reactivity, or compatibility with other components—particularly in photoresist systems, advanced composite matrices, or as a building block for cross-linkable or self-assembling polymer networks.

photoresist and lithographyspecialty polymer synthesiscomposite matrix precursorfunctional coating formulationspolymer modification and blendingresearch and development polymers

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)	359	K	—

Verified Unverified Low confidence (<80%) Link to source

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.