摘要:

AbstractCopolymerization of styrene (ST) with maleic anhydride (MAH) initiated by thiol compound was investigated under various conditions. The kinetics of copolymerization of ST with MAH initiated byp‐toluenethiol (pTT) was studied in dioxane in the temperature range of 25–60°C, and the rates (Rp) of copolymerization and activation energy were determined.Rpwas found to depend on [pTT],0.6([ST] + [MAH])2.7. The overall energy of activation was 10.8 kcal/mol in the temperature range of 25–60°C. A mechanism involving the formation of a complex between MAH and pTT the decomposition of which yields the initial radical is su

ISSN:0887-624X    

DOI:10.1002/pola.1989.080270131

出版商:John Wiley&Sons, Inc.    

年代:1989

数据来源: WILEY

摘要:

AbstractMaleic and citraconic anhydrides were reacted with several diamines to obtain a novel class of high temperature resistant bisimides.1–3The bisimides were characterized by melting points, elemental analysis, UV–Vis,1H‐ and13C‐NMR, and mass spectral analysis. The bisimide monomers were then polymerized by the addition process. A poly(amidemaleimide) was also synthesized by reacting maleic anhydride withp‐aminobenzhydrazide. The thermal stability of these highly crosslinked poly(bisimide)s were examined by TGA and DTA. A neat bisimide monomer obtained from 2,2′‐bis[4(p‐aminophenoxy)phenyl] propane with maleic anhydride namely, 2,2′‐bis[4‐(p‐maleimidophenoxy)phenyl]propane was reacted with 2,2′‐bis[4(p‐aminophenoxy)phenyl]propane by the Michael reaction.4A fiber glass cloth reinforced laminate was prepared from bismaleimide and amine mixture and the mechanical properties o

ISSN:0887-624X    

DOI:10.1002/pola.1989.080270132

出版商:John Wiley&Sons, Inc.    

年代:1989

数据来源: WILEY

ISSN:0887-624X    

DOI:10.1002/pola.1989.080270133

出版商:John Wiley&Sons, Inc.    

年代:1989

数据来源: WILEY

ISSN:0887-624X    

DOI:10.1002/pola.1989.080270134

出版商:John Wiley&Sons, Inc.    

年代:1989

数据来源: WILEY

ISSN:0887-624X    

DOI:10.1002/pola.1989.080270136

出版商:John Wiley&Sons, Inc.    

年代:1989

数据来源: WILEY