Cross-Linked Polythiomethacrylate Esters Based on Naphthalene-Synthesis, Properties and Reprocessing.

ABSTRACT: Two structurally different aromatic dithioesters were synthesized from two dithiols and methacryloyl chloride. The polymer networks based on methyl methacrylate and/or styrene and the new dimethacrylates were subsequently prepared. The polymerization yields of copolymers were in the range of 95-99%. The thermal and mechanical properties of the copolymers were determined by means of differential scanning calorimetry (DSC), thermogravimetric analysis (TG/DTG), and Shore D hardness. The addition of dithioesters-1,5-NAF-S-Met (or 1,4(1,5)-NAF-CH₂S-Met) (from 0.5% to 5%) to MMA- or ST-based polymers results in lowering the glass transition temperature (T_g) by about 8 °C. The thioester-containing polymers based on MMA exhibit lower thermal stability than those with ST. The

SUBMITTER: Fila K 

PROVIDER: S-EPMC7372384 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature