| 000 | 02905ntm a2200289 a 4500 | ||
|---|---|---|---|
| 001 | vtls000093667 | ||
| 003 | KUKTEM | ||
| 005 | 20251117113316.0 | ||
| 008 | 160309t2015 my a f 000 0 eng d | ||
| 020 | _aTHE0001027(Local) | ||
| 039 | 9 |
_a201905241040 _bnazirah _c201711301052 _dfateeha _y201603091146 _zhuda |
|
| 040 | _aUMP | ||
| 090 | _aFKKSA .S935 2015 r Bc. | ||
| 100 | 0 | _aNoor Syahirah Othman | |
| 245 | 1 | 0 |
_aSynthesis and characterization of hypercrosslinked polymer : _beffect of reaction time / _cNoor Syahirah Othman |
| 260 |
_aKuantan, Pahang : _bUMP, _c2015 |
||
| 300 |
_axiii, 32 p. : _bill. ; _c30 cm. + _e1 CD-ROM |
||
| 500 | _aFaculty of Chemical & Natural Resources Engineering | ||
| 502 | _aProject Paper (Bachelors of Chemical Engineering) -- Universiti Malaysia Pahang – 2015 | ||
| 504 | _aBibliography : p. 30-32 | ||
| 520 | 3 | _aHypercrosslinked polymers were categorized as one of the new generation of the porous polymers. The interest in hypercrosslinked polymer is growing rapidly due to their unique physical, chemical and potential applications in many fields from drug-delivery to coatings. In this research, non-aqueous dispersion polymerization precursor was used prior to hypercrosslinking reaction in order to obtain hypercrosslinked polymer and it is focus on the effect of reaction time on the morphology of hypercrosslinked polymer. Hypercrosslinked particles were prepared in post-polymerization using the Friedel-Craft reaction that was swollen in anhydrous 1, 2-dichloroethane (DCE). Scanning Electron Microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and Thermal Gravimetry Analyzer (TGA) were used to characterize the hypercrosslinked particles. The results show that before post-polymerization, the precursor display good quality monodisperse spherical. However, after hypercrosslinking reaction, the quality of final product decrease which is for 12 hours and 24 hours of reaction time, hypercrosslinked particles were agglomerated but for 18 hours of reaction time, the particles can retain their quality similar with quality of precursor. For FTIR analysis, sample of 18 hours, 12 hours and 24 hours showed aliphatic CI streching vibrations at 1290 cm -1 ascribed to chloromethyl group derived from VBC residues and for TGA results, samples of 18 hours, 12 hours and 24 have the maximum weight loss with the compositions about 66.11 %, 47.07 % and 39.96% respectively. Sample of 18 hours has the highest reaction interval compared with the other. | |
| 610 | 2 | 0 |
_aFaculty of Chemical & Natural Resources Engineering _xDissertations |
| 650 | 0 |
_aUniversities and Colleges _xDissertations |
|
| 650 | 0 | _aTheses | |
| 856 | 4 | 0 |
_uhttp://ecollib.ump.edu.my/id/eprint/25963 _zAccess in library only |
| 999 |
_aVIRTUA40 _c6478 _d6484 |
||
| 999 | _aVTLSSORT0080*0200*0400*0900*1000*2450*2600*3000*5000*5020*5040*5200*6100*6500*6501*8560*9992 | ||