Document Detail

Blooming of Irganox 3114(®) antioxidant onto a medical grade elastomer. Impact of the recrystallization conditions on the antioxidant polymorphism, on the film wettability and on the antioxidant leachability.
MedLine Citation:
PMID:  22884835     Owner:  NLM     Status:  Publisher    
Studying the blooming and recrystallization of additives onto the surface of polymer medical devices is of a great interest because it can affect the biocompatibility of the material. The polymorphism of a phenolic antioxidant (Irganox 3114(®)) used as an additive in medical devices and pharmaceutical packaging was studied: two different polymorphs were characterized by differential scanning measurements, FTIR and X-ray diffraction analyses. Then, the behavior of the additive in medical grade polyurethane films was described: a recrystallization into the stable polymorphic form was observed onto the polymer surface after annealing at different temperatures. The morphology observed depends not only on the additive/polymer ratio but also on the whole amount of additive in the polymer film. Depending on the recrystallization morphology, the wettability with water could be lowered and the leachability of the additives into aqueous media could be favored.
J Saunier; V Mazel; C Aymes-Chodur; N Yagoubi
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-4
Journal Detail:
Title:  International journal of pharmaceutics     Volume:  -     ISSN:  1873-3476     ISO Abbreviation:  Int J Pharm     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-8-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7804127     Medline TA:  Int J Pharm     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier B.V. All rights reserved.
Laboratoire "Matériaux et santé", EA 401, UFR de pharmacie, Université Paris-Sud 11, 5, rue JB Clément, 92296 Châtenay Malabry, France.
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