TY - JOUR
T1 - Photo-crosslinked poly(ε-caprolactone fumarate) networks
T2 - Roles of crystallinity and crosslinking density in determining mechanical properties
AU - Wang, Shanfeng
AU - Yaszemski, Michael J.
AU - Gruetzmacher, James A.
AU - Lu, Lichun
N1 - Funding Information:
This work was performed at Mayo Clinic with the supports from the Mayo Foundation and NIH (R01 AR45871 and R01 EB003060). The authors thank Mark E. Zobitz for technical assistance in pull-out tests. WAXD measurements were carried out by Ryan Wold and Linda Sauer in the Institute of Technology Characterization Facility, University of Minnesota, which receives partial support from NSF through the NNIN program.
PY - 2008/12/8
Y1 - 2008/12/8
N2 - We present a material design strategy of combining crystallinity and crosslinking to control the mechanical properties of polymeric biomaterials. Three polycaprolactone fumarates (PCLF530, PCLF1250, and PCLF2000) synthesized from the precursor polycaprolactone (PCL) diols with nominal molecular weights of 530, 1250, and 2000 g mol-1, respectively, were employed to fabricate polymer networks via photo-crosslinking process. Five different amounts of photo-crosslinking initiator were applied during fabrication in order to understand the role of photoinitiator in modulating the crosslinking characteristics and physical properties of PCLF networks. Thermal properties such as glass transition temperature (Tg), melting temperature (Tm), and degradation temperature (Td) of photo-crosslinked PCLFs were examined and correlated with their rheological and mechanical properties.
AB - We present a material design strategy of combining crystallinity and crosslinking to control the mechanical properties of polymeric biomaterials. Three polycaprolactone fumarates (PCLF530, PCLF1250, and PCLF2000) synthesized from the precursor polycaprolactone (PCL) diols with nominal molecular weights of 530, 1250, and 2000 g mol-1, respectively, were employed to fabricate polymer networks via photo-crosslinking process. Five different amounts of photo-crosslinking initiator were applied during fabrication in order to understand the role of photoinitiator in modulating the crosslinking characteristics and physical properties of PCLF networks. Thermal properties such as glass transition temperature (Tg), melting temperature (Tm), and degradation temperature (Td) of photo-crosslinked PCLFs were examined and correlated with their rheological and mechanical properties.
KW - Mechanical properties
KW - Photo-crosslinking
KW - Polycaprolactone fumarate
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U2 - 10.1016/j.polymer.2008.10.021
DO - 10.1016/j.polymer.2008.10.021
M3 - Article
AN - SCOPUS:56349116248
SN - 0032-3861
VL - 49
SP - 5692
EP - 5699
JO - Polymer
JF - Polymer
IS - 26
ER -