Crystallization of gutta percha and synthetic trans-1,4-Polyisoprenes
β Scribed by W Cooper; G Vaughan
- Publisher
- Elsevier Science
- Year
- 1963
- Tongue
- English
- Weight
- 588 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0032-3861
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## Abstract Copolymers of transβ1,4βpolyisoprene containing 2,2 molβ%, 5,0 molβ% and 9,8 molβ% epoxidized units were crystallized from the melt at temperatures (__T__~c~) of 25 to 36Β°C. The progress of the crystallization was monitored, and final crystallinities at __T__~c~ and after cooling to 25Β°
## Abstract A new technology to synthesize __trans__β1,4βpolyisoprene (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