2000
DOI: 10.1016/s0032-3861(99)00651-5
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Kinetic modeling of free radical polymerization of styrene initiated by the bifunctional initiator 2,5-dimethyl-2,5-bis(2-ethyl hexanoyl peroxy)hexane

Abstract: This paper deals with the kinetic study of bulk free radical polymerization of styrene initiated with the commercial bifunctional initiator 2,5-dimethyl-2,5-bis(2-ethyl hexanoyl peroxy)hexane (Lupersol 256). The polymerization kinetics is investigated by DSC measurement for temperatures between 80 and 110ЊC and for initiator initial concentration from 0.115 up to 0.46 mol%. The experimental conversion and reaction rate are compared and discussed with the calculated values. For modeling the polymerization rate,… Show more

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Cited by 40 publications
(38 citation statements)
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“…[24][25][26][27][28][29][30] U tu svrhu provedena je dinamička simulacija rada polimerizacijskog šaržnog reaktora primjenom programskog sustava Chem-CAD v. 5.4. (2004.…”
Section: Ključne Riječi Stiren Polimerizacija U Otopini Difunkcijskunclassified
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“…[24][25][26][27][28][29][30] U tu svrhu provedena je dinamička simulacija rada polimerizacijskog šaržnog reaktora primjenom programskog sustava Chem-CAD v. 5.4. (2004.…”
Section: Ključne Riječi Stiren Polimerizacija U Otopini Difunkcijskunclassified
“…Nakon toga zadane su inicijalne vrijednosti procesnih varijabli kao što su početna temperatura, tlak, koncentracija inicijatora i koncentracija monomera. Definirani su i određeni kinetički parametri procesa; u literaturi su dostupne vrijednosti konstanti propagacije (k p ) i terminacije (k t ) za homopolimerizaciju stirena u masi 20,25,36 , dok su vrijednosti konstanti razgradnje (k d ) za inicijatore dani od proizvođača. Jedina ugodiva veličina bila je djelotvornost inicijatora, koja je postavljena u programu kao konstantna vrijednost.…”
Section: Rezultati I Raspravaunclassified
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“…The rate constant of initiation for styrene is higher than the rate constants of propagation [14,15]. The kinetic study is investigated of bulk free radical polymerization of styrene initiated with the commercial bifunctional initiator 2,5-dimethyl-2,5-bis(2-ethyl hexanoyl peroxy)hexane [16] and with α, α-dichlorotoluene (DCT) as initiator [17]. According to the kinetic study of styrene ATRP, the polymerization proceeds by monomer addition to free radicals which are reversibly generated by an atom transfer process from dormant polymer chains with halide end groups [18].…”
Section: Introductionmentioning
confidence: 99%