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The Pressure‐Induced Calcium Deposition on Crosslinked Polyurethanes
Author(s) -
Shunmugakumar N.,
Jayabalan M.
Publication year - 1992
Publication title -
artificial organs
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.684
H-Index - 76
eISSN - 1525-1594
pISSN - 0160-564X
DOI - 10.1111/j.1525-1594.1992.tb00306.x
Subject(s) - polyurethane , calcification , deposition (geology) , polymer , calcium , materials science , chemical engineering , phase (matter) , chemistry , composite material , organic chemistry , metallurgy , medicine , paleontology , sediment , engineering , biology
The pressure‐induced calcium deposition in crosslinked polyurethane was studied. Two polyurethane systems, IPDI‐PTMG/PPG‐TMP and SMDI‐PTMG/PPG‐TMP were subjected to calcification under induced pressure. Calcium deposition in IPDI polymers was linear with the increase of soft segment (PTMC) content whereas in SMDI polymers the reverse trend was observed. Decreased phase mixing and hydrophilicity in the polymer (SMDI based) having increased soft segment content was attributed to the decreased calcification. The enhanced amount of calcium deposition under pressure indicates the possible influence of pressure on calcification.