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Synthesis and Characterization of Double Crystalline Cyclic Diblock Copolymers of Poly(ε‐caprolactone) and Poly( l ( d )‐lactide) ( c (PCL‐ b ‐ PL(D)LA))
Author(s) -
Liénard Romain,
Zaldua Nerea,
Josse Thomas,
Winter Julien De,
Zubitur Manuela,
Mugica Agurtzane,
Iturrospe Amaia,
Arbe Arantxa,
Coulembier Olivier,
Müller Alejandro J.
Publication year - 2016
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201600309
Subject(s) - caprolactone , copolymer , crystallization , materials science , ring opening polymerization , polymer chemistry , nucleation , polymerization , lactide , polymer , chemistry , organic chemistry , composite material
The synthesis of symmetric cyclo poly(ε‐caprolactone)– block –poly( l ( d )‐lactide) ( c (PCL– b –PL(D)LA)) by combining ring‐opening polymerization of ε‐caprolactone and lactides and subsequent click chemistry reaction of the linear precursors containing antagonist functionalities is presented. The two blocks can sequentially crystallize and self‐assemble into double crystalline spherulitic superstructures. The cyclic chain topology significantly affects both the nucleation and the crystallization of each constituent, as gathered from a comparison of the behavior of linear precursors and cyclic block copolymers. The stereochemistry of the PLA block does not have a significant effect on the nonisothermal crystallization of both linear and cyclo PCL‐ b ‐PDLA and PCL‐ b ‐PLLA copolymers.