Solution properties of polybutadiene and trans-polyisoprene fractions
β Scribed by Cooper, W. ;Eaves, D. E. ;Vaughan, G.
- Publisher
- John Wiley and Sons
- Year
- 1962
- Weight
- 888 KB
- Volume
- 59
- Category
- Article
- ISSN
- 0022-3832
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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°
Synthetic polybutadiene (PBR) and natural rubbers from India (InR) and Guyana (GR) have been characterized in detail. The characterization includes IR, NMR, GPC, DSC, TGA, contact angle, and viscosity measurements. Spectroscopic characterization helped in the differentiation of InR and GR. Viscosity