## Abstract Copolymers of trans‐1,4‐polyisoprene containing 2,2 mol‐%, 5,0 mol‐% and 9,8 mol‐% epoxidized units were crystallized from the melt at temperatures (__T__~c~) of 25 to 36°C. The progress of the crystallization was monitored, and final crystallinities at __T__~c~ and after cooling to 25°
Epoxidation of high trans-1,4-polyisoprene and its properties
✍ Scribed by Yongxian Zhao; Baochen Huang; Wei Yao; Hailin Cong; Huafeng Shao; Aihua Du
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 332 KB
- Volume
- 107
- Category
- Article
- ISSN
- 0021-8995
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## Abstract A new technology to synthesize __trans__‐1,4‐polyisoprene (TPI) with bulk precipitation polymerization in the presence of a supported Ti catalysts was introduced. The termination of polymerization, stabilization of the polymer, and the adjustment of the molecular weight of TPI and its q
## Abstract Telechelic __cis__‐1,4‐oligoisoprenes were prepared by the selective cleavage of weak epoxidized units (E) in epoxidized __cis__‐1,4‐polyisoprenes (EPIs) and by the random cleavage of isoprenic units (I) in __cis__‐1,4‐polyisoprene (PI). In both cases, cleavage by periodic acid (H~5~IO~