. . . . . "new series of chitosan based polyurethane elastomers" . . "A new series of polyurethane elastomers made using chitosan." . . "RSA" . "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCJlM78d80R+gFMoQB1IG3f7AbqqGOCIv4HmZd1cx1KgEWMUUpPsojFNvx84fC/TltcJ8F8JafnbhDXW2HM2MhdK4yC04ROEV1vIgSzjDicHfiqXvMqdPuMyQp4mmCEY7mUoeEW10mWZqjk+S9TnmiAQbFGcpExP8aosr2aTR7CSQIDAQAB" . "ZSyuhgsuV+/1hc9JA1Wjyw3guhtavCErDhI4s5/jS8AnHtnV2CFLXCaB2l8jm7uIfHOelloELR6Y4eP9tleGxZ9ddGtwxa5ruX5yVjR8rHbFG/kU3RKRluQG50Jz4UhgSEF1WK+Bu9CpWSYvCSWuEedXoPQOx/Z5giaUjSvxjCg=" . . "2021-02-16T14:08:57.942+02:00"^^ . . . . . .