Synthesis, characterization and properties of functionalized styrene–maleimide copolymers

Abstract

New functionalized styrene–maleimide copolymers were prepared by free radical copolymerization of styrene (St) and N‐4‐carboxybutylmaleimide (NBMI) in chloroform, using 2,2′‐azobisisobutyronitrile (AIBN) as initiator. Monomer and copolymer characterization was carried out by 1H‐ and 13C‐NMR. Copolymer composition was determined by elemental analysis and Fourier‐transform infrared (FTIR) spectroscopy. The glass transition temperature (from DSC) and the thermogravimetric analysis (TGA) of the copolymers were consistent with the thermal behavior and stability observed for alternating St–maleimide copolymers. St–NBMI copolymers crosslinked with divinylbenzene (DVB) were also synthesized and their cation exchange properties evaluated in order to assess the capacity of the new copolymers to bind metallic ions. Copyright © 2005 Society of Chemical Industry

Synthesis, characterization, and thermal degradation kinetics of poly(styrene-co-N-maleimide isobutyl polyhedral oligosilsesquioxane)

“…In the DSC curve, the glass transition of the P(S-co-NMIP) is detected at around 175 C. According to data obtained from DSC study, it is clear that the glass transition temperature of the P(S-co-NMIP) is enhanced by POSS when compared with st/ma or cross-linked st/ma. 30,31 Thermal degradation kinetics of P(S-co-NMIP) P(S-co-NMIP) was heated thermogravimetrically under various heating rates such as 5, 10, 15, and 20 C min À1 with a temperature range of 30-1000 C to determine their thermal degradation mechanisms and the values of E. The TG and DTG curves obtained for P(S-co-NMIP) are shown in Figures 6 and 7, respectively. The individual degradation behavior of copolymer was analogous at all heating rates as seen from these figures.…”

Styrene‐Maleimide/Maleic Anhydride Alternating Copolymers: Recent Advances and Future Perspectives

“…[ 8,10 ] The N ‐4‐carboxybutylmaleimide (NBMI) has been reported to form alternating copolymers with S at 60 °C using AIBN as an initiator and chloroform as solvent via free radical copolymerization with the conversion of 33–83 wt.%. [ 55 ] Although FRP and copolymerization of S with RMIs producing nearly alternating copolymer through the formation of CTC have already been reported in many papers, Yilmaz et al chose photoinduced radical polymerization to prepare the alternating copolymers of thiophene‐containing PMI with S at room temperature (Figure 2B). [ 56 ] The ω , ω ‐dimethoxy‐ ω ‐phenyl acetophenone (DMPA) was used as the photoinitiator for the synthesis.…”