... amount of lowmolecular-weight polymer in the polymerization of NVK formed by a cationic process initiated by benzoyl peroxide [41 9 ,42 0] or AIBN in the presence of CCl4 [42 1] and CBr4 [42 2 ,42 3] ... agents [49 6 49 9] Furthermore, AIBN is found to be an efficient initiator for the polymerization of NVP [49 7 ,49 8] without the need of a buffering agent [48 7 ,49 9–501] The kinetics of NVP polymerization ... and of low molecular weight Initiation with benzoyl peroxide did not give satisfactory results either [48 2 ,48 3 ,48 5 ,48 6] The initiator of choice is AIBN [48 7] Breitenbach et al [48 8 ,48 9] have polymerized...
... butanone [49 5] or ethyl methyl ketone [47 0 ,47 6] with AIBN [49 6 49 9] and dioxane with benzoyl peroxide [47 4 ,48 4,500,503] In benzene as solvent the resulting polymer forms a slurry [5 04] AIBN can ... use of bipyridine instead of 4, 40 -di-(5-nonyl)2,20 -bipyridine causes a lower control of the polymerization because of the reduced solubility of the deactivator [309] In the case of bulk polymerization, ... 80% [2 34, 244 , 245 ] A comparison of the triad distribution for anionic and GT polymerizations of MMA with the same counterions under the same conditions shows that the tacticities of both polymerization...
... 41 Þ 42 Þ 43 Þ 44 Þ 45 Þ An entirely new synthetic approach is based on the oxidative coupling of 4, 40 -diphenoxydiphenylsulfones (46 a) or 4, 40 -diphenylsulfidodiphenylsulfone (46 a), (R1–R4 ¼ ... copolycondensation of 4- fluoro -40 -trimethylsiloxy-diphenylsulfone with small amounts of DFDPS [50] The molecular weight was controlled by the feed ratio of DFDPS When small amounts of 4, 40 -bis(2 ,4- difluorobenzoyl)diphenyl ... range of 1 044 Â 1 04 Da were obtained [ 248 –250] Several publications deal with syntheses of poly(arylene-ether)s based on 1,3 ,4- oxadiazole rings [251–253] or based on 1,3 ,4- triazoles [253,2 54] ð155Þ...
... 45 1 309 271 183 158 1 14 113 70 45 33 46 09 Chem Eng News, August 4, 22 (1997) during processing By selecting the type of isocyanate and polyols, or combination of isocyanates and combination of ... p-Phenylene 2 ,4- TDI 2,6-TDI 1,5-NDI 1,6-HDI 36.0 21.0 7 .4 4.0 8.3 46 33.1 41 .9 50.2 46 .0 Table Relative rate constants of isocyanate groups with a hydroxyl group Isocyanate MDI 2 ,4- TDI 2,6-TDI ... ¼ ½ðB À SÞN  4: 202=W ð37Þ where B is the number of ml of HCl used for titration of the blank, S is the number of ml of HCl used for titration of the sample, N is the molarity of HCl solution,...
... values of the molecular weight are in general less then 1 04 In the case of the copolymerization of trans-Pd[P(C4H9)3]2(C6H4CH ¼ CH2)Cl (M2), the copolymerization parameters r1 ¼ 1 .49 and r2 ¼ 0 .45 ... complex [ 84] The influence of ring size on the mechanism of the binding of metal ions by polymers can be illustrated in relation to the formation of complexes between TiCl4 and the copolymers of styrene ... Nþ/ CoPc(SOÀ )4 of : [ 146 ,151,152] The tendency of aggregation of phthalocyanines in water strongly depends on the hydrophilic character of the kind of latexes based on copolymers of styrene, quarternized...
... 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 Stolka, M (1988) Encyclopedia ofPolymer Science and Engineering, ... properties ofpolymer (4a) as well as of its copolymers have been studied by the xerographic technique, both in the presence and in the absence of the sensitizer TNF [46 ,47 ] The photoconductivity of (4a) ... [139] and Bradley ¨ [ 140 ] One of the major improvements was the use of tetrahydrothiophene instead of dimethyl sulphide in the synthesisof the precursor polymer [ 141 ] The use of the cyclic leaving...
... ratio of about 0 .4 and an average degree of polymerization of about 30 [43 ] ð12Þ Phenylic substituents at the vinylene positions — increasing both solubility of the polymer and stability of the ... efficiency of 22 lm/W [3] Polyfluorene Copolymers The described synthesisof polyfluoren homopolymers allows also the design of alternating copolymers Instead of the 2,7-dibromofluorene a variety of dibromoarenes ... strategy of their formation and are divided into completely p-conjugated polymers, non-conjugated polymers and polymers with defined segmentation (see Structure 4) 4 II n-CONJUGATED POLYMERS...
... A (1978) J Elast Plast., 10: 129 143 Goodyear, Ch (1 844 ) US Patent 3633 144 Baekeland, L H (1913) Ind Eng Chem., 5: 506 145 Bayer, O (1 941 ) Ann., 549 : 286 146 Seidl, J., Malinsky, J., Dusˇ ek, ... W Jeske, P Wendling 113 DE 198 348 02, EP 991 147 43.0 (1998) to: Bayer AG, inventors: W Obrecht, T Scholl, P Wendling, V Monroy, M Well 1 14 DE 198 348 03, EP 991 147 44. 8 (1998) to: Bayer AG, inventors: ... development of numerous polymeric reagents [ 148 ] Presently, the fast expanding technique of combinatorial organic synthesis traces back to this fruitful strategy Although the analysis of crosslinked polymer...
... 2 04 206 209 211 213 Assimilative Psychodynamic Therapy 221 223 225 226 229 231 2 34 236 237 CBT Assimilative Integration 242 245 244 246 247 248 2 54 256 257 Anxiety Disorders 263 271 272 272 2 74 ... Holmes, and C Eugene Walker Handbookof Psychotherapy Integration, SecondEdition edited by John C Norcross and Marvin R Goldfried Handbookof Psychotherapy Integration SecondEdition Edited by John ... a new edition OUR AIM What has not materially changed is the purpose of our book The aim of this secondedition vi Preface continues to be a state -of- the-art, comprehensive description of psychotherapy...
... Journal of Psychiatry, 169, 563–570 Alexander, F (1963) The dynamics of psychotherapy in light of learning theory American Journal of Psychiatry, 120, 44 0 44 8 Alford, B (1991) Integration of scientific ... Journal of Psychotherapy, 34, 5 34 544 Norcross, J C (Ed.) (1986) Handbookof eclectic psychotherapy New York: Brunner/Mazel Norcross, J C (1988) Supervision of integrative psychotherapy Journal of ... assessment of client needs, and a use of outcome research The first editionof the Handbookof Psychotherapy Integration, edited by Norcross and Goldfried (1992), offered a comprehensive examination of...