Crystallinity of block copolymer controlled by cyclodextrin

被引:4
作者
Bertolino, Vanessa [1 ]
Cavallaro, Giuseppe [1 ]
Lazzara, Giuseppe [1 ]
Milioto, Stefana [1 ]
Parisi, Filippo [1 ]
机构
[1] Univ Palermo, Dept Chem & Phys, Viale Sci,Pad 17, I-90128 Palermo, Italy
关键词
Tetronic; DSC; Copolymer; Supramolecular structures; Cyclodextrin; MODIFIED HALLOYSITE NANOTUBES; ALPHA-CYCLODEXTRIN; TRIBLOCK COPOLYMERS; INCLUSION COMPLEXES; LIGHT-SCATTERING; PHASE-BEHAVIOR; AQUEOUS-MEDIA; NANOCOMPOSITES; POLYROTAXANES; TEMPERATURE;
D O I
10.1007/s10973-018-6982-8
中图分类号
O414.1 [热力学];
学科分类号
摘要
We report a differential scanning calorimetry study to investigate the effect of cyclodextrins (CD) on the crystallinity of a copolymer. Tetronics was selected as copolymer with star-like shape formed by four polyethylene oxide flanked by four polypropylene oxide blocks linked to ethylenediamine central group. The use of CD with different cavity size was exploited for a block selective inclusion. A model for supramolecular association was considered for a quantitative description of the enthalpy data. The polymer chain incorporation into the CD cavity generates a loss of crystallinity. The stoichiometry of the CD/copolymer aggregates can be tuned by changing the CD cavity size. The investigated systems represent interesting necklace-like supramolecular structures with tunable crystallinity.
引用
收藏
页码:191 / 196
页数:6
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