The Effects of Acid Activation on the Thermal Properties of Polyvinylpyrrolidone and Organoclay Composites

<div>FTIR spectra of (a) Mt, (b) AMt0.5, (c) C16TMA-Mt, (d) C16TMA-AMt0.5 (<svg height="11.6164pt" id="M7" style="vertical-align:-0.1802998pt" version="1.1" viewbox="-0.0498162 -11.4361 9.4148 11.6164" width="9.4148pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M390 111C344 68 312 56 269 56C212 56 118 102 118 241C118 346 175 401 241 401C277 401 312 388 342 360C350 352 355 349 361 349C372 349 394 371 394 392C394 403 391 411 378 422C362 436 329 449 288 449H287C250 449 190 432 138 392C71 341 37 274 37 197C37 90 112 -12 238 -12C297 -12 363 32 407 90L390 111Z" id="g190-100"></path><glyph.data ascent="989" descent="-360" horiz-adv-x="423" vert-adv-y="423"></glyph.data></g><g transform="matrix(.0091,0,0,-0.0091,5.52,-5.741)"><path d="M310 541L304 571C290 586 211 619 185 610L80 76L131 52L310 541Z" id="g50-31"></path><glyph.data ascent="3443" descent="-2856" horiz-adv-x="361" vert-adv-y="361"></glyph.data></g></svg>) PVP/C16TMA-Mt, and (<svg height="11.8905pt" id="M8" style="vertical-align:-0.1802998pt" version="1.1" viewbox="-0.0498162 -11.7102 10.7849 11.8905" width="10.7849pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M517 51L485 54C448 58 441 63 441 115V712C404 700 337 684 285 678V653C357 648 362 645 362 580V437C339 446 309 449 295 449C159 449 38 340 38 201C38 61 143 -12 223 -12C234 -12 261 -6 301 17L362 53V-12C420 9 495 22 517 26V51ZM362 85C338 67 301 51 266 51C201 51 128 109 128 228C128 373 212 411 259 411C296 411 338 395 362 360V85Z" id="g190-101"></path><glyph.data ascent="989" descent="-360" horiz-adv-x="528" vert-adv-y="528"></glyph.data></g><g transform="matrix(.0091,0,0,-0.0091,6.89,-6.016)"><path d="M310 541L304 571C290 586 211 619 185 610L80 76L131 52L310 541Z" id="g50-31"></path><glyph.data ascent="3443" descent="-2856" horiz-adv-x="361" vert-adv-y="361"></glyph.data></g></svg>) PVP/C16TMA-AMt0.5. (e) The FTIR spectrum of neat PVP was presented for comparison.</div>

Journal of Chemistry

fig2

Figure 2

Figure 2: The Effects of Acid Activation on the Thermal Properties of Polyvinylpyrrolidone and Organoclay Composites 