Matches in SemOpenAlex for { <https://semopenalex.org/work/W2150954802> ?p ?o ?g. }
- W2150954802 endingPage "1868" @default.
- W2150954802 startingPage "1858" @default.
- W2150954802 abstract "Abstract Pseudo‐interpenetrating polymer networks (p‐IPNs) of an epoxy resin and poly(methyl methacrylate) (PMMA) were synthesized simultaneously. Methyl methacrylate (MMA) was polymerized with benzoyl peroxide in the presence of an oligomeric epoxy resin, which contained stoichiometric amounts of either a tetrafunctional [i.e., ethylenediamine (EDA)] or hexafunctional [i.e., triethylenetetramine (TETA)] crosslinking agent. The resulting materials would be useful for aerospace, automotive, medical, and dental applications. The structure of the epoxy resin (i.e., tetraglycidyl 4,4′‐diamine diphenyl methane) was confirmed by elemental analysis and IR and NMR spectroscopies. The thermal, mechanical, and kinetic behaviors of the polymeric networks produced from this oligomeric epoxy resin and the p‐IPNs of this crosslinked epoxy with linear PMMA were compared. Time‐resolved IR spectroscopy of the cyclic ether group in the epoxy at 906 cm −1 revealed kinetic information between 40 and 80°C for a complex reaction scheme. In the absence of MMA, the asymptotic final conversion of epoxide groups was achieved after (1) 60 min of chemical crosslinking at 50°C and (2) 30 min of crosslinking at 80°C with tetrafunctional EDA. In the presence of 10 wt % MMA, asymptotic final conversions of the epoxide group were achieved after (1) 150 min at 40°C, (2) 80 min at 50°C, and (3) 30 min at 80°C. In agreement with other kinetic studies based on the same epoxy resin but different crosslinking agents, these solvent‐free polymerizations were diffusion‐controlled during the later stages of chemical crosslinking because the apparent reaction order was very close to unity, via an unsteady state batch reactor model with lumped‐parameter kinetics. The thermal expansion coefficients of the crosslinked epoxy resin increased at higher concentrations of PMMA, but hexafunctional TETA produced a higher crosslink density and reduced the thermal expansion relative to the same networks and p‐IPNs prepared with tetrafunctional EDA. Elastic modulus, fracture stress, and toughness increased synergistically when the epoxy resin was crosslinked with EDA at 40°C in the presence of 10 wt % MMA. This p‐IPN exhibited minimal shrinkage, on the order of 0.15%, during the actual polymerization. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 89: 1858–1868, 2003" @default.
- W2150954802 created "2016-06-24" @default.
- W2150954802 creator A5022238101 @default.
- W2150954802 creator A5051579326 @default.
- W2150954802 creator A5062535804 @default.
- W2150954802 creator A5085919177 @default.
- W2150954802 date "2003-05-28" @default.
- W2150954802 modified "2023-10-17" @default.
- W2150954802 title "Pseudo-interpenetrating polymer networks based on tetrafunctional epoxy resins and poly(methyl methacrylate)" @default.
- W2150954802 cites W1980382117 @default.
- W2150954802 cites W1982418204 @default.
- W2150954802 cites W1983582757 @default.
- W2150954802 cites W1985111489 @default.
- W2150954802 cites W1994723884 @default.
- W2150954802 cites W2019135634 @default.
- W2150954802 cites W2025461580 @default.
- W2150954802 cites W2026224248 @default.
- W2150954802 cites W2026257168 @default.
- W2150954802 cites W2029196449 @default.
- W2150954802 cites W2030534283 @default.
- W2150954802 cites W2031681704 @default.
- W2150954802 cites W2037325799 @default.
- W2150954802 cites W2037880400 @default.
- W2150954802 cites W2055145630 @default.
- W2150954802 cites W2057054768 @default.
- W2150954802 cites W2057885349 @default.
- W2150954802 cites W2058353197 @default.
- W2150954802 cites W2076565270 @default.
- W2150954802 cites W2077741869 @default.
- W2150954802 cites W2079328652 @default.
- W2150954802 cites W2081819234 @default.
- W2150954802 cites W2084870231 @default.
- W2150954802 cites W2103918716 @default.
- W2150954802 cites W2105566495 @default.
- W2150954802 cites W2118768715 @default.
- W2150954802 cites W2119285268 @default.
- W2150954802 cites W2145024246 @default.
- W2150954802 cites W2161079188 @default.
- W2150954802 cites W2322967385 @default.
- W2150954802 cites W2474910950 @default.
- W2150954802 cites W2787490062 @default.
- W2150954802 cites W3080700835 @default.
- W2150954802 cites W4232909251 @default.
- W2150954802 doi "https://doi.org/10.1002/app.12317" @default.
- W2150954802 hasPublicationYear "2003" @default.
- W2150954802 type Work @default.
- W2150954802 sameAs 2150954802 @default.
- W2150954802 citedByCount "7" @default.
- W2150954802 countsByYear W21509548022016 @default.
- W2150954802 countsByYear W21509548022017 @default.
- W2150954802 crossrefType "journal-article" @default.
- W2150954802 hasAuthorship W2150954802A5022238101 @default.
- W2150954802 hasAuthorship W2150954802A5051579326 @default.
- W2150954802 hasAuthorship W2150954802A5062535804 @default.
- W2150954802 hasAuthorship W2150954802A5085919177 @default.
- W2150954802 hasConcept C132050475 @default.
- W2150954802 hasConcept C159985019 @default.
- W2150954802 hasConcept C161790260 @default.
- W2150954802 hasConcept C166595027 @default.
- W2150954802 hasConcept C178790620 @default.
- W2150954802 hasConcept C185592680 @default.
- W2150954802 hasConcept C188027245 @default.
- W2150954802 hasConcept C192562407 @default.
- W2150954802 hasConcept C2776920199 @default.
- W2150954802 hasConcept C2777935641 @default.
- W2150954802 hasConcept C2780700233 @default.
- W2150954802 hasConcept C2780871995 @default.
- W2150954802 hasConcept C44228677 @default.
- W2150954802 hasConcept C521977710 @default.
- W2150954802 hasConceptScore W2150954802C132050475 @default.
- W2150954802 hasConceptScore W2150954802C159985019 @default.
- W2150954802 hasConceptScore W2150954802C161790260 @default.
- W2150954802 hasConceptScore W2150954802C166595027 @default.
- W2150954802 hasConceptScore W2150954802C178790620 @default.
- W2150954802 hasConceptScore W2150954802C185592680 @default.
- W2150954802 hasConceptScore W2150954802C188027245 @default.
- W2150954802 hasConceptScore W2150954802C192562407 @default.
- W2150954802 hasConceptScore W2150954802C2776920199 @default.
- W2150954802 hasConceptScore W2150954802C2777935641 @default.
- W2150954802 hasConceptScore W2150954802C2780700233 @default.
- W2150954802 hasConceptScore W2150954802C2780871995 @default.
- W2150954802 hasConceptScore W2150954802C44228677 @default.
- W2150954802 hasConceptScore W2150954802C521977710 @default.
- W2150954802 hasIssue "7" @default.
- W2150954802 hasLocation W21509548021 @default.
- W2150954802 hasOpenAccess W2150954802 @default.
- W2150954802 hasPrimaryLocation W21509548021 @default.
- W2150954802 hasRelatedWork W1965213780 @default.
- W2150954802 hasRelatedWork W1970248597 @default.
- W2150954802 hasRelatedWork W1983099130 @default.
- W2150954802 hasRelatedWork W1985028633 @default.
- W2150954802 hasRelatedWork W2049232865 @default.
- W2150954802 hasRelatedWork W2076356063 @default.
- W2150954802 hasRelatedWork W2112258895 @default.
- W2150954802 hasRelatedWork W2315439536 @default.
- W2150954802 hasRelatedWork W3132128550 @default.
- W2150954802 hasRelatedWork W2462659401 @default.
- W2150954802 hasVolume "89" @default.