计算聚亚甲基链的末端距四次矩，并同二级相互作用的结果进行了比较。
In this paper, fourth moment of end-to-end distance of polymethylene chains in the third-order interaction approximation is calculated.
聚四亚甲基醚二醇(PTMEG)是生产氨纶和聚氨酯弹性体的重要原料之一。
Polytetramethylene ether glycol (PTMEG) is one of important materials for production of spandex and thermoplastic polyurethanes elastomer (PU).
取以杂多酸为催化剂，一步法合成聚四亚甲基醚醇(PTMG)，对影响聚四亚甲基醚醇单程收率的各因素进行了讨论。
Polyoxytertramethylene (PTMG) is synthetized in one step using heteropoly acid as catalyst. We discussed the factors which influenced the yield of PTMG.
目的比较几种以盐酸聚六亚甲基双胍为主要成分的消毒剂杀灭白色念珠菌的效果。
Objective To compare the efficacy of four kinds of polyhexamethylene biguanidine compound disinfection solutions in killing Candida albicans.
盐酸聚六亚甲基脏消毒剂的研究结论：盐酸聚六亚甲基肌对细菌繁殖体能达到消毒效果，但对细菌芽胞作用不明显。
Conclusion: PMGH was demonstrated to kill bacteria in vegetative form and got good disinfection effect, but not to bacterial spore.
方法采用定量杀菌试验和肉汤稀释法以及动物试验方法，对单纯盐酸聚六亚甲基胍杀(抑)菌效果和毒性进行试验观察。
Methods Quantitative germicidal test, broth dilution and animal toxicity test were used to carry out in the laboratory to observe its germicidal or inhibitory efficacy and toxicity.
六亚甲基二异氰酸酯(HMDI)可用在预聚物中代替甲苯二异氰酸酯〔tdi〕。
Hexamethylene diisocyanate (HMDI) may be used in prepolymer, in place of TDI.
与聚六亚甲基单胍比较，聚六亚甲基双胍对谷草杆菌、啤酒酵母和黑曲霉的抑菌效果优于聚六亚甲基单胍。
Compare with PHMG, it has a better bacteriostasis effect for Aspartate bacillis, beer yeast and Aspergillus Niger than PHMG.
与聚六亚甲基单胍比较，聚六亚甲基双胍对谷草杆菌、啤酒酵母和黑曲霉的抑菌效果优于聚六亚甲基单胍。
Compare with PHMG, it has a better bacteriostasis effect for Aspartate bacillis, beer yeast and Aspergillus Niger than PHMG.
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