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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Synthesis of polyHEMA hydrogels for using as biomaterials. Bulk and solution radical-initiated polymerization techniques

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Author(s):
Juliana Matos Seidel [1] ; Sônia Maria Malmonge [2]
Total Authors: 2
Affiliation:
[1] Universidade Estadual de Campinas. Centro de Tecnologia. Laboratório de Engenharia Biomecânica - Brasil
[2] Universidade Estadual de Campinas. Centro de Tecnologia. Laboratório de Engenharia Biomecânica - Brasil
Total Affiliations: 2
Document type: Journal article
Source: MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS; v. 3, n. 3, p. 79-83, 2000-07-00.
Abstract

Dense and porous polyHEMA hydrogels were synthesized by bulk and solution radical-initiated polymerization techniques. The morphologic analysis (SEM) of obtained hydrogels showed an amorphous dense structure for the samples obtained by bulk polymerization and a porous structure with non connected porous as a result of bulk polymerization in the presence of water soluble crystals (sucrose/NaCl). The use of solution polymerization technique using different amounts of water as diluent resulted in the formation of a sponge-like structure with connected microporous in case of using water amount equal or higher than 57.5%. The saline solution uptake and dynamic mechanical behavior of dense hydrogels were influenced by the amount of crosslinking between the polymer chains. (AU)