The influence of temperature on the polymerization of ethyl cyanoacrylate from the vapor phase

Journal Article · Sat Jan 01 04:00:00 EST 2011 · Reactive & Functional Polymers

OSTI ID:1041105

Dadmun, Mark D ^[1]; Algaier, Dana ^[2]; Baskaran, Durairaj ^[2]

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1. ORNL
2. University of Tennessee, Knoxville (UTK)

The polymerization of ethyl cyanoacrylate fumes from surface bound initiators is an important step in many novel and mature technologies. Understanding the effect of temperature on the rate of poly(ethyl cyanoacrylate) (PECA) growth and its molecular weight during its polymerization from the vapor phase from surface bound initiators provides insight into the important mechanistic aspects that impact the polymerizations success. In these studies, it is shown that the amount of PECA formed during the polymerization of ECA from a latent fingerprint increases with decreasing temperature, while the polymer molecular weight varies little. This is interpreted to be the result of the loosening of the ion pair that initiates the polymer chain growth and resides on the end of the growing polymer chain with decreasing temperature. Comparison of temperature effects and counter-ion studies show that in both cases loosening the ion pair results in the formation of more polymer with similar molecular weight, verifying this interpretation. These results further suggest that lowering the temperature may be an effective method to optimize anionic vapor phase polymerizations, including the improvement of the quality of aged latent prints and preliminary results are presented that substantiate this prediction.

• Research Organization: Oak Ridge National Laboratory (ORNL)
• Sponsoring Organization: SC USDOE - Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1041105
• Journal Information: Reactive & Functional Polymers, Journal Name: Reactive & Functional Polymers Journal Issue: 8 Vol. 71
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CHAINS
FORECASTING
ION PAIRS
MOLECULAR WEIGHT
POLYMERIZATION
POLYMERS
TEMPERATURE DEPENDENCE