采用一步法合成以4 ，4 '-甲烷二环已基二异氰酸酯（HMDI）、扩链剂1，4 -丁二醇（BDO）为硬段，聚四氢呋喃醚（PTMG）为软段的脂肪族聚氨酯。
The one step method was adopted in this study to synthesize aliphatic polyurethane with 4,4 methylene dicyclohexyl diisocyanate(HMDI), 1,4 butanediol(BDO) and poly (tetrahydrofuran)(PTMG).
对聚丁二酸丁二醇酯（ PBS）的合成、改性及应用进行了综述，讨论了合成过程中的影响因素以及合成工艺对材料性能的影响。
The synthesis and modification methods of the PBS were reviewed. The effects on the synthesis and the technology on the capability also were discussed.
以聚酯（PEA、PEPA）或聚醚（PTMG）和TDI为原料合成聚氨酯预聚体，用三异丙醇胺 （TIPA）和1，4-丁二醇（BDO）的混合物作扩链剂制备聚氨酯弹性体。
A series of polyurethane (PU) elastomer were synthesized from polyester(PEA, PEPA) or polyether(PTMG), toluene dissocyanate (TDI), mixture of triisopropanolamine(TIPA) and 1,4-butanediol(BDO).
通过急性经口毒性试验测定了己二酸聚1,2 -丙二醇酯和邻苯二甲酸聚1,3 -丁二醇酯的毒性。
The toxicity of poly 1, 2-propylene adipate and poly 1, 3-butylene phthalate were determined by the acute toxicity tests.
通过急性经口毒性试验测定了己二酸聚1,2 -丙二醇酯和邻苯二甲酸聚1,3 -丁二醇酯的毒性。
The toxicity of poly 1, 2-propylene adipate and poly 1, 3-butylene phthalate were determined by the acute toxicity tests.
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