Data for: Elaboration of AA-BB and AB-type Non-Isocyanate Polyurethanes (NIPUs) using a cross metathesis polymerization between methyl carbamate and methyl carbonate groups

AA-BB and AB-type Non-Isocyanate Polyurethanes (NIPUs) were synthesized through a cross metathesis polymerization between methyl carbamate and methyl carbonate groups within AA-BB and AB monomers. These monomers were prepared by reaction of diamines, diols or amino-alcohols with an excess of dimethylcarbonate (DMC), using 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) as catalyst. Due to a slight chain extension, dimethyldicarbonate monomers as well as AB-type monomers contained few carbonate groups, which were present within the final NIPUs. The polymerization was performed in bulk at 200°C, using K2CO3 as catalyst. Except for AB-type monomers obtained from amino-alcohols with 3 and 4 methylene groups, the polymerization was successful leading selectively to the expected NIPUs. These materials exhibited good thermal properties with Tg ranging from -35 to 10°C, Tm ranging from 96 to 256°C and degradation temperature above 200°C. The polyurethane properties were generally intermediate comparing to those of polyurea and polycarbonate analogues prepared in the same conditions.

AA-BB型与AB型非异氰酸酯聚氨酯（Non-Isocyanate Polyurethanes, NIPUs）通过AA-BB型与AB型单体内的氨基甲酸甲酯与碳酸甲酯基团间的交叉复分解聚合反应合成。该类单体由二胺、二元醇或氨基醇与过量碳酸二甲酯（dimethylcarbonate, DMC）反应制备，以1,5,7-三叠氮双环[4.4.0]癸-5-烯（1,5,7-triazabicyclo[4.4.0]dec-5-ene, TBD）作为催化剂。由于存在轻微的链延伸过程，二甲基二碳酸酯单体与AB型单体均含有少量碳酸酯基团，此类基团最终会保留在所得NIPU材料中。聚合反应采用本体聚合方式，在200℃下进行，以碳酸钾（K₂CO₃）作为催化剂。除由带有3个和4个亚甲基的氨基醇制得的AB型单体外，其余聚合反应均顺利完成，且选择性得到目标NIPU产物。该类材料展现出良好的热性能，玻璃化转变温度（glass transition temperature, Tg）介于-35℃至10℃之间，熔融温度（melting temperature, Tm）介于96℃至256℃之间，热降解温度高于200℃。相较于相同条件下制备的聚脲与聚碳酸酯类似物，该聚氨酯材料的性能通常处于两者之间。