Multiple Endothermic Peaks Resulted from Different Crystal Structures in an Isomorphous Copolymer Poly (3-hydroxybutyrate-<italic style="font-style: italic">co</italic>-3-hydroxyvalerate)

You Lv; Hao Zhu; Min-fang An; Hao-jun Xu; Li Zhang; Zong-bao Wang

doi:10.1007/s10118-016-1866-5

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Multiple Endothermic Peaks Resulted from Different Crystal Structures in an Isomorphous Copolymer Poly (3-hydroxybutyrate-co-3-hydroxyvalerate)

Papers | Updated：2021-05-12

- Multiple Endothermic Peaks Resulted from Different Crystal Structures in an Isomorphous Copolymer Poly (3-hydroxybutyrate-co-3-hydroxyvalerate)
- Multiple Endothermic Peaks Resulted from Different Crystal Structures in an Isomorphous Copolymer Poly (3-hydroxybutyrate-co-3-hydroxyvalerate)
- Chinese Journal of Polymer Science 2016年34卷第12期页码：1510-1522
- Affiliations：
  
  Ningbo Key Laboratory of Specialty Polymers, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
- Author bio：
  
  Zong-bao Wang(王宗宝), E-mail:wangzongbao@nbu.edu.cn
- Funds：
  
  Natural Science Foundation of Zhejiang Province(LY15B040003);K.C. Wong Magna Fund in Ningbo University
- DOI：10.1007/s10118-016-1866-5
  中图分类号：
- 收稿：2016-05-05，
  
  修回：2016-5-31，
  
  录用：2016-6-6，
  
  纸质出版：2016-12
- Accepted：
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You Lv, Hao Zhu, Min-fang An, 等. Multiple Endothermic Peaks Resulted from Different Crystal Structures in an Isomorphous Copolymer Poly (3-hydroxybutyrate-co-3-hydroxyvalerate)[J]. Chinese Journal of Polymer Science, 2016,34(12):1510-1522. DOI: 10.1007/s10118-016-1866-5.

You Lv, Hao Zhu, Min-fang An, et al. Multiple Endothermic Peaks Resulted from Different Crystal Structures in an Isomorphous Copolymer Poly (3-hydroxybutyrate-co-3-hydroxyvalerate)[J]. Chinese Journal of Polymer Science, 2016, 34(12): 1510-1522. DOI: 10.1007/s10118-016-1866-5.
You Lv, Hao Zhu, Min-fang An, 等. Multiple Endothermic Peaks Resulted from Different Crystal Structures in an Isomorphous Copolymer Poly (3-hydroxybutyrate-co-3-hydroxyvalerate)[J]. Chinese Journal of Polymer Science, 2016,34(12):1510-1522. DOI: 10.1007/s10118-016-1866-5. DOI：

You Lv, Hao Zhu, Min-fang An, et al. Multiple Endothermic Peaks Resulted from Different Crystal Structures in an Isomorphous Copolymer Poly (3-hydroxybutyrate-co-3-hydroxyvalerate)[J]. Chinese Journal of Polymer Science, 2016, 34(12): 1510-1522. DOI: 10.1007/s10118-016-1866-5. DOI：

摘要

Abstract

The multiple endothermic peaks of poly (3-hydroxybutyrate-

-3-hydroxyvalerate) (P (HB-

-HV)) in differential scanning calorimetry (DSC) results

as one representative phenomenon of polymer with unique cocrystallization behavior

were generally considered as the results of melting/recrystallization. In this study

wide angle X-ray diffraction (WAXD) and small angle X-ray scattering (SAXS) experiments were conducted to analyze the phenomena of multiple endothermic peaks in DSC results. The results of these analyses indicated that the multiple endotherms were mainly caused by different lamellae structures. For P (HB-

-HV) with lower HV content

it was comprised of two structures of HV total exclusion and HV partial inclusion in the crystal lamellae. For P (HB-

-HV) with higher HV content

it was also comprised of two structures of HV total inclusion and HV partial inclusion in the crystal lamellae. However

only structure with HV partial inclusion in the crystal lamellae remained existing after first melting peak for all samples.

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references

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Multiple Endothermic Peaks Resulted from Different Crystal Structures in an Isomorphous Copolymer Poly (3-hydroxybutyrate-co-3-hydroxyvalerate)

Multiple Endothermic Peaks Resulted from Different Crystal Structures in an Isomorphous Copolymer Poly (3-hydroxybutyrate-co-3-hydroxyvalerate)

DOI：10.1007/s10118-016-1866-5

摘要

Abstract

关键词

Keywords

references