專業(yè)英語(yǔ)Lesson 5(課堂PPT)

1、25.08.2020,高分子專業(yè)英語(yǔ) Special English for Polymer Science,主講：彭采宇 Email: ,25.08.2020,UNIT 6 Molecular Weight and its Distributions of Polymers,25.08.2020,1,2,25.08.2020,1,2,e.g. : In most instances, the calculations might not be accurate,25.08.2020,(1)This is out of question an example of an important p

2、rinciple that applies to all machines. (2)You must remember that the laws that apply to air apply to all other gases.,1,25.08.2020,(1)A solid is different from a liquid in that the solid has definite shape. (2)In that he is the chairman, he should preside the meeting,2,An ax is used to apply force t

3、o wood.,25.08.2020,1,The answers may lie in a close reexamination of the fossil evidence.,25.08.2020,Various methods are available for the experimental measurement of the average molecular weight of a polymer sample. These include methods based on colligative properties, light scattering, viscosity,

4、 ultracentrifugation, and sedimentation. The various methods do not yield the same average molecular weight. Different average molecular weights are obtained because the properties being measured are biased differently toward the different sized polymer molecules in a polymer sample.,25.08.2020,Some

5、 methods are biased toward the larger sized polymer molecules, while other methods are biased toward the smaller sized molecules. The result is that the average molecular weights obtained are correspondingly biased toward the larger or smaller sized molecules. The most important average molecular we

6、ights which are determined are the number-average molecular weight Mn, the weight-average molecular weight Mw and the viscosity-average molecular weight Mv.,E.g.: Its not unusual to see test plans biased toward functional testing.,biased toward：偏重（偏倚）于，偏愛,25.08.2020,In addition to the different aver

7、age molecular weights of a polymer sample, it is frequently desirable and necessary to know the exact distribution of molecular weights. A variety of different fractionation methods are used to determine the molecular weight distribution of a polymer sample. These are based on fractionation of a pol

8、ymer sample using properties, such as solubility and permeability which vary with molecular weight.,OdianG. Principles of Polymerization, New York: McGraw-Hill Book Company, 1973. 19,25.08.2020,聚合物相關(guān)專業(yè)詞匯 1. macromolecule, polymer 高分子，又稱“大分子”。 2. supra polymer 超高分子 3. natural polymer 天然高分子 4. inorgan

9、ic polymer無機(jī)高分子 5. organic polymer有機(jī)高分子 6. inorganic organic polymer無機(jī)-有機(jī)高分子 7. organometallicpolymer金屬有機(jī)聚合物 8. element polymer元素高分子 9. oligomer低聚物, 齊聚物“ 10. dimer二聚體11. trimer三聚體12. prepolymer預(yù)聚物 13. regular polymer 規(guī)整聚合物 14. irregular polymer 非規(guī)整聚合物,25.08.2020,15. atacticpolymer無規(guī)立構(gòu)聚合物 16. isotact

10、icpolymer 全同立構(gòu)聚合物, 又稱等規(guī)聚合物“ 17. syndiotacticpolymer 間同立構(gòu)聚合物, 又稱間規(guī)聚合物” 18. heterotacticpolymer 雜同立構(gòu)聚合物, 又稱異規(guī)聚合物” 19. stereoregularpolymer, tactic polymer 有規(guī)立構(gòu)聚合物, “有規(guī)聚合物” 20. amphiphilicblock copolymer 兩親嵌段共聚物 21. Heteropolymer雜聚物 22. azeotropiccopolymer 恒組分共聚物 23. multicomponentcopolymer 多組分共聚物 24.

11、monodispersepolymer, uniform polymer 單分散聚合物 25. polydispersepolymer, non-uniform polymer 多分散性聚合物 26. polyblend, polymer blend 高分子共混物 27. polymer-metal complex 聚合物-金屬配合物,25.08.2020,29. single-strand polymer 單股聚合物 30. double-strand polymer 雙股聚合物 31. multi-strand polymer多股聚合物 32. carbon chain polymer 碳

12、鏈聚合物 33. heterochainpolymer 雜鏈聚合物 34. heterocyclic polymer 雜環(huán)高分子 35. macrocyclicpolymer 大環(huán)聚合物 36. straight chain polymer 直鏈高分子 37. linear polymer 線型聚合物 38. three-dimensionalpolymer體型聚合物, 又稱“網(wǎng)絡(luò)聚合物(network polymer)”、交聯(lián)聚合物(crosslinkedpolymer) 。 39. living polymer活性高分子 40. Reactivepolymer反應(yīng)性聚合物 41. pola

13、r polymer 極性聚合物 42. non-polar polymer 非極性聚合物 43. rigid chain polymer 剛性鏈聚合物 44. dendrimer, dendriticpolymer, tree polymer 樹狀高分子 45. branchedpolymer支化聚合物,25.08.2020,46. hyperbranchedpolymer 超支化聚合物 47. graft polymer 接枝聚合物 48. core shell copolymer 核-殼共聚物 49. core shell latex polymer 核-殼膠乳聚合物 50. chiral

14、polymer 手性高分子 51. interpenetrating polymer networks, IPN 互穿聚合物網(wǎng)絡(luò) 52. semi-interpenetrating polymer network半互穿聚合物網(wǎng)絡(luò) 53. conjugated polymer共軛聚合物 54. synthetic polymer 合成聚合物 55. addition polymer 加成聚合物 56. commodity polymer 通用高分子 57. functional polymer 功能高分子 58. Biomimetic polymer 仿生高分子 59. shape-memory

15、 polymer 形狀記憶高分子 60. enzyme like polymer 類酶高分子 61. biopolymer生物高分子 62. bioelastomer生物彈性體,Chiral molecules,25.08.2020,63. bioactive polymer 生物活性高分子 64. bioerodablepolymer 生物可蝕性高分子 65. biodegradable polymer生物降解高分子 66. medical polymer 醫(yī)用高分子 67. biomedical polymer 生物醫(yī)用高分子 68. degradable polymer 降解性高分子 69. high performance polymer 高性能高分子 70. high modulus polymer 高模量聚合物 71. specialitypolymer 特殊性能高分子, 又稱特種高分子“ 72. intelligent polymer 智能聚合物 73. hydrophilic polymer 親水聚合物