Semi-Continuous Shear Flow Investigation into Medium and High Molecular Weight Polyhydroxybutyrate Blends

Lakshmi Sharma; Yoshino Ogino; Toshiji Kanaya; Tadahisa Iwata; Yoshiharu Doi

doi:10.1177/096739110701500210

journal article·2007-02

Semi-Continuous Shear Flow Investigation into Medium and High Molecular Weight Polyhydroxybutyrate Blends

Lakshmi Sharma, Yoshino Ogino, Toshiji Kanaya, Tadahisa Iwata, Yoshiharu Doi

Polymers and Polymer Composites· Volume 15· Issue 2

Publisher page

Source abstract

Abstract

We investigated the changes in morphology of medium and high molecular weight polyhydroxybutyrate blends (MMWT/HMWT PHB) during shearing, using various in-situ rheological methods. On single shearing, fibres were formed only at the highest MMWT/HMWT ratio of (97/3). This was attributed to a critical orientation molecular weight. Fibre formation took place with all compositions and there was a rapid initial shish formation on multiple shearing. This is evidence for a partial shish based on the Janeschitz–Kriegl model.

Source: crossref · Quality: baseline

Research context

OpenAlex topics: Polymer crystallization and properties · Rheology and Fluid Dynamics Studies · biodegradable polymer synthesis and properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Polymer Material Science Laboratory, Institute for Chemical Research, Kyoto University, Kyoto, Uji City, Japan 611 0011

Polymer Chemistry Laboratory, RIKEN Institute (The Institute of Physical and Chemical Research), Hirosawa, Wako-shi, Saitama, Japan 351-0198

References (21)

Show source-provided references

1. 10.1002/mame.20040018110.1002/mame.200400181 ↗

2. 10.1122/1.55003810.1122/1.550038 ↗

3. 10.3139/217.93023610.3139/217.930236 ↗

4. 10.3139/217.95024310.3139/217.950243 ↗

5. 10.1007/BF0039603910.1007/BF00396039 ↗

6. 10.3139/217.97007210.3139/217.970072 ↗

7. 10.1021/ma990772j10.1021/ma990772j ↗

8. 10.1016/S0032-3861(00)00236-610.1016/S0032-3861(00)00236-6 ↗

9. 10.1021/ma020785o10.1021/ma020785o ↗

10. 10.1016/S0032-3861(00)00919-810.1016/S0032-3861(00)00919-8 ↗

11. 10.1002/mame.20040018110.1002/mame.200400181 ↗

12. Sharma L. · J. Material Science.

13. Doi Y. · 1990

14. Ray A. R. · Macromolecular and Physics · 1995 · 35 · 327

15. 10.1016/S0032-3861(99)00807-110.1016/S0032-3861(99)00807-1 ↗

16. 10.1007/s00253005090210.1007/s002530050902 ↗

17. 10.1002/marc.20040011010.1002/marc.200400110 ↗

18. 10.1016/0032-3861(95)92213-X10.1016/0032-3861(95)92213-X ↗

19. 10.1016/S0032-3861(01)00090-810.1016/S0032-3861(01)00090-8 ↗

20. 10.1007/BF0066563610.1007/BF00665636 ↗

21. 10.1023/A:100456382749110.1023/A:1004563827491 ↗