In vitro degradation studies and mechanical behavior of poly(蔚-caprolactone-co-未-valerolactone) and poly(蔚-caprolactone-co-L-lactide) with random and semi-alternating chain microstructures
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- 作者：Jorge Ferná ; ndeza ; jorge.fernandez@ehu.es" class="auth_mail" title="E-mail the corresponding author ; Agustin Etxeberriab ; Jose-Ramon Sarasuaa
- 关键词：Polycaprolactone ; Lactide ; 未-valerolactone ; Hydrolytic degradation ; Mechanical properties
- 刊名：European Polymer Journal
- 出版年：2015
- 出版时间：October 2015
- 年：2015
- 卷：71
- 期：Complete
- 页码：585-595
- 全文大小：1320 K
文摘
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蔚-CL-co-LA and 蔚-CL-co-未-VAL copolymers showed semi-alternating (R → 2) or random (R ∼ 1) distribution of sequences.
未-VAL copolymers degraded 3–5 times faster than PCL.
l-LA copolymers had a degradation rate 6–10 times higher than that of PCL.
Their mechanical behavior was heavily dependent on the crystalline phase.
The properties of the copolymers with a low Tm (<52 °C) or a small 螖Hm (<33 J g−1) were not measurable at 37 °C.