With monomer of A_aB_b type, the sol fraction of polycondensation for post-gel, in whichnot only the functional groups of A to react with those of B, but also the functional groupsof A with those of A and the function...With monomer of A_aB_b type, the sol fraction of polycondensation for post-gel, in whichnot only the functional groups of A to react with those of B, but also the functional groupsof A with those of A and the functional groups of B with those of B are involved, is discuss-ed in detail. As a direct result, the gelation condition is obtained explicitly.展开更多
For the polycondensation reaction of A_a<B_b(C_c) type, the sol fraction for post-gel is investigated from probability consideration to approach gelation condition as a limitation. Furthermore, by means of a direct...For the polycondensation reaction of A_a<B_b(C_c) type, the sol fraction for post-gel is investigated from probability consideration to approach gelation condition as a limitation. Furthermore, by means of a direct differentiation technique, a recursion formula is proposed for the evaluation of polymer moments in explicit forms for both pre-gel and post-gel.展开更多
基金the National Natural Science Foundation of China.
文摘With monomer of A_aB_b type, the sol fraction of polycondensation for post-gel, in whichnot only the functional groups of A to react with those of B, but also the functional groupsof A with those of A and the functional groups of B with those of B are involved, is discuss-ed in detail. As a direct result, the gelation condition is obtained explicitly.
文摘For the polycondensation reaction of A_a<B_b(C_c) type, the sol fraction for post-gel is investigated from probability consideration to approach gelation condition as a limitation. Furthermore, by means of a direct differentiation technique, a recursion formula is proposed for the evaluation of polymer moments in explicit forms for both pre-gel and post-gel.