Abstract: The polymer-solvent interaction parameter μ for poly (cis-1, 4-butadiene) was determined by stress-strain measurements of swollen gum and black vulcanizates. It is found that μ is a function of vr, μ = μ0+ βvr. The μ0 valuethus obtained is consistent with those determined by osmometry and light-scattering. The effective network chain densities of vulcanizates with different degree of curing were calculated by Flory-Rehner equation. The influence of effective network chain density for poly (cis-1, 4-butadiene) on vulca-nizate properties, such as tensile stress at 300% elongation, tensile strength, tear strength, ultimate elongation and so on were studied.

摘要： 本文用顺丁橡胶的纯胶硫化胶和炭黑硫化胶,通过溶胀-拉伸实验,测定了顺丁橡胶的高聚物-溶剂相互作用参数μ.结果表明μ是溶胀网络中橡胶体积分数v_r的函数μ=μ_o+βv_r.得到的μ_o.值与在稀溶液中(v_r→0)用渗透压、光散射法得到的μ_o值很接近.不同v_r时μ值的求得,为测定顺丁橡胶硫化胶的有效网链密度提供了途径.并深入研究了硫化胶的有效网链密度对300%定伸强度、抗张强度、抗撕裂、伸长率、硬度、弹性、静态模量和动态模量等重要性质的影响.