IR laser ablative modification of poly(ethylene- co-acrylic acid) zinc salt

IR laser-induced ablative degradation of poly(ethylene- co-acrylic acid) zinc salt (PEAZn) leads to cleavage of both polyethylene backbone and CO 2H group. It yields carbon oxides and volatile hydrocarbons (ethene as a major product) and affords ablative deposition of solid ionomeric films in which...

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Bibliographic Details
Published in:Polymer degradation and stability 2006-12, Vol.91 (12), p.2834-2839
Main Authors: Blazevska-Gilev, Jadranka, Šubrt, Jan, Bastl, Zdeněk, Pola, Josef
Format: Article
Language:English
Subjects:
Applied sciences
Chemical reactions and properties
Degradation
Exact sciences and technology
Laser ablation
Laser degradation
Laser-induced polymer films
Organic polymers
Physicochemistry of polymers
Poly(ethylene- co-acrylic acid) zinc salt
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Summary:IR laser-induced ablative degradation of poly(ethylene- co-acrylic acid) zinc salt (PEAZn) leads to cleavage of both polyethylene backbone and CO 2H group. It yields carbon oxides and volatile hydrocarbons (ethene as a major product) and affords ablative deposition of solid ionomeric films in which the initial ratio –CO 2H/–CO 2Zn is decreased due to higher thermal stability of the –CO 2Zn group. The laser-induced process differs remarkably from conventional degradation of similar polyethylene chain-based metal methacrylate ionomers that are known to yield cold ring fraction containing only –CO 2H group. The cleavage of the polyethylene backbone in the laser-induced degradation becomes more important at higher fluences. The presence of sodium metasilicate is shown to accelerate the decomposition of the CO 2H group.
ISSN:0141-3910
1873-2321
DOI:10.1016/j.polymdegradstab.2006.09.007