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Study on Polymerization Kinetics of Methylene Diphenyl Diisocyanate
Alternative TitleActa Chim. Sin.
Zhang Qinhua1,2; Li Huiquan1; Liu Haitao1
2011-03-28
Source PublicationACTA CHIMICA SINICA
ISSN0567-7351
Volume69Issue:6Pages:605-609
AbstractThe polymerization processes of methylene diphenyl diisocyanate (MDI) had been studied in flow atmosphere of high purity N(2) using TG-DSC-DTG techniques. The kinetic parameters of the polymerization process were calculated through the Flynn-Wall-Ozawa method and the polymerization raechanism of MDI was also studied with the Satava-Sestak and Coats-Redfern methods. The results indicated that: the process calculated could be attributed to the mechanism of random nucleation and subsequently growth, with the mechanism function being G(alpha)=[-In(1-alpha)](1/2). The activation energy and pre-exponential factor were E=58.42 kJ/mol and A=5006 min(-1), the kinetic equation may be expressed as: [-In(1-alpha)](1/2)=5006 Xexp(-58.42X1000)/8.314XT)t.; The polymerization processes of methylene diphenyl diisocyanate (MDI) had been studied in flow atmosphere of high purity N(2) using TG-DSC-DTG techniques. The kinetic parameters of the polymerization process were calculated through the Flynn-Wall-Ozawa method and the polymerization raechanism of MDI was also studied with the Satava-Sestak and Coats-Redfern methods. The results indicated that: the process calculated could be attributed to the mechanism of random nucleation and subsequently growth, with the mechanism function being G(alpha)=[-In(1-alpha)](1/2). The activation energy and pre-exponential factor were E=58.42 kJ/mol and A=5006 min(-1), the kinetic equation may be expressed as: [-In(1-alpha)](1/2)=5006 Xexp(-58.42X1000)/8.314XT)t.
KeywordMethylene Diphenyl Diisocyanate Polymerization Kinetics Mechanism
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
URL查看原文
Indexed BySCI
Language英语
WOS KeywordTHERMAL-DEGRADATION KINETICS ; PROBABLE MECHANISM FUNCTION ; THERMOGRAVIMETRIC DATA ; DECOMPOSITION KINETICS ; DSC CURVE ; PARAMETERS
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000289923700001
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6494
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang Qinhua,Li Huiquan,Liu Haitao. Study on Polymerization Kinetics of Methylene Diphenyl Diisocyanate[J]. ACTA CHIMICA SINICA,2011,69(6):605-609.
APA Zhang Qinhua,Li Huiquan,&Liu Haitao.(2011).Study on Polymerization Kinetics of Methylene Diphenyl Diisocyanate.ACTA CHIMICA SINICA,69(6),605-609.
MLA Zhang Qinhua,et al."Study on Polymerization Kinetics of Methylene Diphenyl Diisocyanate".ACTA CHIMICA SINICA 69.6(2011):605-609.
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