1987
DOI: 10.1021/ma00175a006
|View full text |Cite
|
Sign up to set email alerts
|

Thermal stability of isocyanate-based polymers. 2. Kinetics of the thermal dissociation of model urethane, oxazolidone, and isocyanurate block copolymers

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
4
1

Citation Types

2
72
0
1

Year Published

1989
1989
2015
2015

Publication Types

Select...
8
1

Relationship

0
9

Authors

Journals

citations
Cited by 77 publications
(75 citation statements)
references
References 5 publications
2
72
0
1
Order By: Relevance
“…(5) is more active at low temperatures than the one formed in eq. (6). The reduction in the activity of the former at high temperatures has a correlation with the behavior of the anionic homopolymerization of epoxides initiated by tertiary amines (a decrease in reaction rate is observed at high temperatures).…”
Section: Reaction Schemementioning
confidence: 89%
“…(5) is more active at low temperatures than the one formed in eq. (6). The reduction in the activity of the former at high temperatures has a correlation with the behavior of the anionic homopolymerization of epoxides initiated by tertiary amines (a decrease in reaction rate is observed at high temperatures).…”
Section: Reaction Schemementioning
confidence: 89%
“…The major drawback of MCPU coatings is the formation of side products on storage and if these reactions are significant, both pot stability and shelf life are expected to be dramatically affected. The presence of side products, for example allophanate and isocyanurate, add branch points, which increases the viscosity of the NCO capped prepolymer and changes the onset of gelation during cure and thereby lower the storage stability of the product [4][5][6][7]. The presence of additional hard segment material due to biuret and allophanate changes the hard domain volume fraction and hence the interconnectivity of the hard segments [8], alter the thermal properties [9,10] as well as adhesive behaviour [11].…”
Section: Introductionmentioning
confidence: 99%
“…The literature on this subject predominantly describes the thermal decomposition of various polyurethane samples under pyrolytic conditions of decomposition (thermogravimetry). [3][4][5][6][7][8] According to a velocity law, logically consistent first-order kinetics are confirmed for the pyrolytic thermal decomposition. Theoretically, however, a chain cleaving and a recombination of reactive end groups can take place.…”
Section: Introductionmentioning
confidence: 74%