聚合物分子在四氢呋喃稀溶液中的幂指数为0.14,说明该聚合物具有支化结构。
The power index was 0.14, which indicated that the polymer had branched molecular structure in dilute solution of tetrahydrofuran.
四氢硼钠在己烷和甲苯溶剂中,不易引发丙烯酸第三丁酯的聚合反应,但在吡啶和四氢呋喃中能引发聚合,亦得到非晶态聚合物。
NaBH4 in hexane or toluene would not initiate the polymerization unless pyridine or THF was used as solvent, but an amorphous polymer was the product.
以发烟硫酸-高氯酸为催化剂,通过四氢呋喃的阳离子开环聚合合成了窄分子量分布的聚四氢呋喃(PTHF)。
Polytetrahydrofuran (PTHF) with narrow molecular mass distribution was prepared by cationic ring-opening polymerization of tetrahydrofuran using H_2SO_4 · SO_3-HClO_4 system as a catalyst.
以发烟硫酸-高氯酸为催化剂,通过四氢呋喃的阳离子开环聚合合成了窄分子量分布的聚四氢呋喃(PTHF)。
Polytetrahydrofuran (PTHF) with narrow molecular mass distribution was prepared by cationic ring-opening polymerization of tetrahydrofuran using H_2SO_4 · SO_3-HClO_4 system as a catalyst.
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