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Cross-linked density determination of natural rubber compounds by different analytical techniques
(2021-01-01)
This paper investigated the formation of crosslinks in natural rubber compounds in the vulcanization systems: conventional (CV), semi-efficient (SEV), and efficient (EV), processed with three types of accelerators: MBTS ...
Influence of cross-linking density on swelling and estradiol permeation of chitosan membranes
(Springer, 2010-02)
Chitosan membranes were obtained by a casting/solvent evaporation method and cross-linking with sodium tripolyphosphate. The effect of cross-linking time was studied and the cross-linked membranes were characterized with ...
Insights into the swelling process and drug release mechanisms from cross-linked pectin/high amylose starch matrices
(2013)
Cross-linked pectin/high amylose mixtures were evaluated as a new excipient for matrix tablets formulations, since the mixing of polymers and cross-linking reaction represent rational tools to reach materials with modulated ...
Effect of different photo-activation methods on push out force, hardness and cross-link density of resin composite restorations
(Elsevier Sci LtdOxfordInglaterra, 2008)
Cross-link density evaluation through softening tests: Effect of ethanol concentration
(Elsevier Sci LtdOxfordInglaterra, 2008)
Tailored norbornene-based copolymer with systematic variation of norbornadiene as a crosslinker obtained via ROMP with alternative amine Ru catalysts
(PERGAMON-ELSEVIER SCIENCE LTDOXFORD, 2012)
Copolymers of norbornene (NBE) with norbomadiene (NBD) were obtained via ROMP with [RuCl2(PPh3)(2)(L)] type complexes as initiators (1 for L = piperidine and 2 for L = 3,5-Me(2)piperidine). The reactions were performed ...
The relationship between visceral fat thickness and bone mineral density in sedentary obese children and adolescents
(2013-03-20)
Background: Among adults, obesity has been positively related to bone mineral density. However, recent findings have pointed out that abdominal obesity could be negatively related to bone density. The above mentioned ...