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Citation: Liu Wenzhong, Zhang Xitian, Zhang Qingyu. ELASTOMER BASED ON LIQUID HYDROXYL-TERMINATED POLYBUTADIENE Ⅱ.INFLUENCE OF MOLECULAR WEIGHT DISTRIBUTION OF LIQUID HYDROXYL-TERMINATED POLYBUTADIENE ON THE MECHANICAL PROPERTIES OF ELASTOMER[J]. Chinese Journal of Applied Chemistry, ;1988, 5(2): 67-70. shu

ELASTOMER BASED ON LIQUID HYDROXYL-TERMINATED POLYBUTADIENE Ⅱ.INFLUENCE OF MOLECULAR WEIGHT DISTRIBUTION OF LIQUID HYDROXYL-TERMINATED POLYBUTADIENE ON THE MECHANICAL PROPERTIES OF ELASTOMER

1.
Changchun Institute of Applied Chemistry, Acacemia Sinica

Received Date: 31 March 1987
Available Online: 3 July 1987

The influence of molecular weight distribution of hydroxyl-terminated liquid polybutadiene(HTPB) on the mechanical properties of the elastomer obtained from HTPB, N, N-bis(2-hydroxypropyl) aniline and toluene diisocyanate has been investigated. The results showed that molecular weight distribution of HTPB had no marked effect on the tensile strength, 100% modulus and hardness of the elastomter. However, the permanent set of the elastomer increased obviously, when the polydispersity index of HTPB changed from 1.6 to 2.1.
- Polyurethane,
- Elastomer,
- Butadiene oligomer,
- Molecular weight distribution,
- Mechanical property
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