摘要
In the paper,the structures of the crystalline 3,4-polyisoprene(3,4-PI) which was first synthesized in our institute,were investigated by using Wide Angle X-ray Diffraction(WAXD);Small Angle X-ray Scattering(SAXS)and Laue photography in various polymerization conditions and elongate ratios.It was found that reducing reaction velocity was favourable for crystalline capacity.The polymeric structures were dependent mainly on nitrogen electron donor.The degree of crystallinity and long period were increased with elongate ratio,but crystalline size was decreased.The polymers used in the work belong to inhomogeneous particulate system.The particulate radii were between 35-164A.
In the paper,the structures of the crystalline 3,4-polyisoprene(3,4-PI) which was first synthesized in our institute,were investigated by using Wide Angle X-ray Diffraction(WAXD);Small Angle X-ray Scattering(SAXS)and Laue photography in various polymerization conditions and elongate ratios.It was found that reducing reaction velocity was favourable for crystalline capacity.The polymeric structures were dependent mainly on nitrogen electron donor.The degree of crystallinity and long period were increased with elongate ratio,but crystalline size was decreased.The polymers used in the work belong to inhomogeneous particulate system.The particulate radii were between 35-164A.
