Copolymers :
16. In the following schematic copolymer diagrams, A - acrylonitrile, B = butadiene, M=methyl methacrylate, S...
In a polymerization of methyl methacrylate, a polymerization rate of 8.0x10-5 M/s was observed when the monomer and initiator concentrations were 9.0 M and 0.010 M, respectively. a. Calculate the value of the observed rate constant, k’, for this reaction. b. How should the monomer concentration be changed to achieve a polymerization rate of 3.2x10-5 M/s? c. How should the initiator concentration be changed to achieve a polymerization rate of 2.4x10-4 M/s?
For each of the following, determine the number average sequence length for both monomers and draw approximate structures of the copolymers assuming you use 50% monomer 1 and 50% monomer 2 as feed in the polymerizations. (a) maleic anhydride / methyl acrylate Data: r1=0.02 r2=2.5 r1r2=0.07 (b) butadiene / styrene Data: r1=1.40 r2=0.78 r1r2=1.1 (c) styrene / vinyl acetate Data: r1=55 r2=0.01 r1r2=0.55
For each of the following, determine the number average sequence length for both monomers and draw approximate structures of the copolymers assuming you use 50% monomer 1 and 50% monomer 2 as feed in the polymerizations. (a) maleic anhydride / methyl acrylate Data: r1=0.02 r2=2.5 r1r2=0.07 (b) butadiene / styrene Data: r1=1.40 r2=0.78 r1r2=1.1 (c) styrene / vinyl acetate Data: r1=55 r2=0.01 r1r2=0.55
Problems 101 2 CH-CH-CH-S-CH-CH-CH, A CH, CH3)4CH, SH B CH, -CH-CH:-0-CH-CH2-CH, CH-CH-CHU-0 H с D HUMBERS 6. The infrared spectra of some polymeric materials follow. Assign a structure to each of them, selected from the following choices: polyamide (nylon), poly(methyl methacrylate), polyethylene, polystyrene, and poly(acrylonitrile-styrene). You may need to look up the structures of these materials. MORO 14 200 2000 9900 1400 1200 WAVENUVIDERSION) 1000 MICRONS 1 12 13 14 15 TRANSMITTANCE man 1730 cm 1600 1200 1000 600 WAVENUMBERS
23) What is the following compound's systematic name? 23) CHE CH, CH CH,CHCH, A) 2-methyl-4-heptanone B)2-methyl-4-pentanone 2-methyl-4-hexanone D) 5-methyl-3-heptanone E) 5-methyl-3-hexanone 24) Which of the following is phenol? 24) CH2OH ОН I IV. op CH SO3H IT. III OCH A) B) IT D) IV E) V 25) 25) Which of the following substituents is a strong deactivator? A) -OCH3 B) -NO2 C)-COOH D) - E) none of the above
What is the IUPAC name of the following compound? 5-methyl-2-hexene 1-hexene 2-methyl-5-hexene S-methyl-1-hexene 2-methyl-1-hexene It has been estimated that only about 32% of residents in Ventura County have adequate earthquake supplies. Suppose you randomly survey 36 residents in the County. Let X be the number of residents who have adequate earthquake supplies. a. What is the distribution of X? X-E Please show the following answers to 4 decimal places. b. What is the probability that exactly 16 residents who have...
need help with I-K
I. The de Broglie wavelength for a baseball (100 g) traveling at 40 m/s is (a) 1.6x103 m (b) 3.3x10-34 m (c) 1.6x1024 nm (b) 3.3x1024 m Questions J and K refer to butadiene, C4Hs (4 carbon with 2 double bonds), a t electron system that can be studied using the particle-in-a-box model, and the allowed energies are given by n-4 n 3 n 1,2,3 En- n- 1 where L is the length of the box...
Q5: How will you convert the following? (0.5 mark each) a) Acetone to 2-methyl-2-propanol b) Acetone to 2-propanol c) Acetaldehyde to acetic acid d) Formaldehyde to 1-propanol e) Acetaldehyde to 2-butanol 1) Draw the structure of the following molecules i. Phenyl benzoate ii. Propanoic anhydride iii. Isopropyl acetate iv. 3-formylcyclopentane carboxylic acid v. 2,2-dimethylbutane dioic acid
9.4 Draw a structural formula for each of the following esters: a. cyclohexyl propanoate b. methyl formate e, ethyl benzoate d. isopropyl acetate e. butyl butanoate f. propyl pentanoate 9.5 Assign names to each of the following amines: NH b. CH, -NH-CH2-CH c. (CH-CH2),N 4. NH - CHE 6, CHỊCH,CH, NH, 9.6 Complete the following equations: a. CH CH NH2 + HCI NH b. + HCI C. CHỊCHÚNH - CHI + HBr + d. N(CH)2 + HBr - 9.7 Draw...
26) Name the following compound. CH3 H2C=CH-CH2CHCH: A) 1,1-dimethyl-3-butane B) 4-methyl-1-pentene C) hexene D) 2-methyl-4-pentene E) 2-methylpentene 27) Name the following compound. CI A) 2,3,5-trichlorobenzene B) trichlorostyrene C) 1,3,4-trichlorobenzene D) 1,3,4-trichlorohexene E) 1,2,4-trichlorobenzene 28) Identify the formula for an alkene. A) CnH2n+4 B) CnH2n+2 C) CnH2n D) CnH2n-4 E) CnH2n-2 29) Name the following compound. A) 1,4-bromocyclohexene B) 1,4-dibromobenzene C) 3,6-dibromobenzene D) 2,5-dibromobenzene E) 2,5-dibromocyclohexene 30) Name the following compound. CECH CH,CH,CHCH A) 2-ethynebutane B) 3-methyl-1-pentyne C) 3-methyl-4-pentyne D) 3-ethyl-1-butyne...