Characterization data of reference industrial polycarboxylate superplasticizers used within Priority Program DFG SPP 2005 “Opus Fluidum Futurum - Rheology of reactive, multiscale, multiphase construction materials”

Two industrial polycarboxylate superplasticizer samples have been selected to be used within the Priority Program 2005 of the German Research Foundation (DFG SPP 2005). The PCE polymers were characterized via Size Exclusion Chromatography (SEC) to determine their molar masses (Mw, Mn), the polydispersity index (PDI) and the conversion rate which indicates the incorporation of the macromonomer into the polymer. The anionic charge amount of the PCE samples was assessed via charge titration employing a cationic polymer.本研究选取两例工业级聚羧酸系减水剂（industrial polycarboxylate superplasticizer）样品，用于德国研究基金会（German Research Foundation, DFG）优先项目2005（SPP 2005）。针对其中的聚羧酸醚（Polycarboxylate Ether, PCE）聚合物，采用尺寸排阻色谱法（Size Exclusion Chromatography, SEC）进行表征，以测定其重均摩尔质量（M_w）、数均摩尔质量（M_n）、多分散性指数（PDI），以及反映大分子单体接枝至聚合物中效率的转化率。此外，采用阳离子聚合物（cationic polymer）作为滴定剂，通过电荷滴定法（charge titration）评估该PCE样品的阴离子电荷含量。