نتایج جستجو برای: cationic polyurethane dispersion

تعداد نتایج: 87405  

ژورنال: مواد پرانرژی 2013

In order to increasing of hydroxy functionality of HTPB an in-situ nitroxide mediated polymerization (NMP) of 1,3-butadiene was carried out in presence of TEPA as a polyfunctional nitroxide precursor. The multi-modal molar mass distribution of the product was elucidated by reductive hydrolyzation of the oligomeric product. The new polyfunctional hydroxyl-terminated polybutadiene (PFHTPB) was c...

2015
Luiz Fernando Kubrusly Marina Simões Formighieri José Vitor Martins Lago Yorgos Luiz Santos de Salles Graça Ana Cristina Lira Sobral Marianna Martins Lago

OBJECTIVE To evaluate the behavior of castor oil-derived polyurethane as a hemostatic agent and tissue response after abdominal aortic injury and to compare it with 2-octyl-cyanoacrylate. METHODS Twenty-four Guinea Pigs were randomly divided into three groups of eight animals (I, II, and III). The infrarenal abdominal aorta was dissected, clamped proximally and distally to the vascular punctu...

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