Alkylphenols yɛ organic compounds kuw bi a wɔanya - dwumadie ahodoɔ pii wɔ nnwuma ahodoɔ mu. Sɛ́ obi a ɔde dodecylphenol ma no, manya hokwan asua ne su ahorow ho ade yiye na mede atoto alkylphenol afoforo ho. Wɔ saa blog yi mu no, mɛhwehwɛ nsɛsoɔ a ɛda dodecylphenol ne alkylphenols foforɔ ntam.
Nnuru a Wɔde Yɛ Nneɛma
Alkylphenols, a dodecylphenol ka ho, wɔ nnuru titiriw bi. Wɔyɛ phenol ring, a ɛyɛ benzene ring a hydroxyl kuw (-OH) abata ho. Nea ɛma alkylphenol biako da nsow wɔ foforo ho ne alkyl kuw a ɛbata phenol ring no ho no. Wɔ dodecylphenol fam no, alkyl kuw no yɛ dodecyl nkɔnsɔnkɔnsɔn, a carbon atɔm dumien na ɛwom. Alkylphenol afoforo betumi anya alkyl nkɔnsɔnkɔnsɔn ntiantiaa anaa atenten, te sɛ octylphenol (a octyl nkɔnsɔnkɔnsɔn a carbon atɔm awotwe wom) anaa nonylphenol (a nonyl nkɔnsɔnkɔnsɔn a carbon atɔm akron wom).
Phenol ring a ɛwɔ alkylphenols nyinaa mu no ma wonya nnuru su ahorow bi a ɛtaa ba. Hydroxyl kuw a ɛwɔ phenol ring no so no betumi de ne ho ahyɛ hydrogen nkitahodi mu. Saa hydrogen - bonding tumi yi ka wɔn solubility wɔ polar solvents ne wɔn nkitahodi ne molecule afoforo. Sɛ nhwɛso no, alkylphenols tumi ne nsu mu nneɛma nketenkete yɛ hydrogen nkitahodi kodu baabi, na ɛno na ɛma wontumi nwura nsu mu kakraa bi. Alkylphenols nyinaa, a dodecylphenol ka ho, kyerɛ sɛ ɛyɛ su sɛ ɛbɛpete yiye wɔ organic solvents te sɛ alcohols ne ethers mu sɛ wɔde toto nsuo ho a, ɛnam alkyl nkɔnsɔnkɔnsɔn no a ɛnyɛ - polar su ne hydrogen - bonding nkitahodi a ɛyɛ mmerɛw kakra ne nsuo nti.
Nneɛma a Ɛwɔ Honam Fam
Nsuo a ɛtumi nwura mu
Sɛnea yɛadi kan aka no, sɛnea dodecylphenol tumi nwura mu no te sɛ alkylphenol afoforo. Wɔn nyinaa wɔ polar (phenol kuw) ne non - polar (alkyl kuw) afã horow a wɔaka abom wɔ wɔn molecule ahorow mu. Mpɛn pii no, bere a alkyl nkɔnsɔnkɔnsɔn no tenten kɔ soro no, nea ɛtumi nwura nsuo mu no so tew. Dodecylphenol, a ne dodecyl nkɔnsɔnkɔnsɔn tenten yɛ no, ntumi nwura nsuo mu sɛ wɔde toto - nkɔnsɔnkɔnsɔn tiawa alkylphenol te sɛ octylphenol ho a. Nanso, wɔn nyinaa di su a ɛkɔ so wɔ ɔkwan a ɛkɔ akyiri so a ɛne sɛ wɔtumi nwura mu kɛse wɔ non - polar anaasɛ moderately polar organic solvents mu no akyi. Saa su a ɛma ɛtumi nwura mu yi ho hia wɔ mfiridwuma mu dwumadie mu, te sɛ nea wɔyɛ wɔ nnuru a wɔde tew nneɛma ho, nneɛma a wɔde hohoro nneɛma ho, ne sradeɛ mu. Sɛ nhwɛso no, wɔ srade a wɔyɛ mu no, tumi a alkylphenols wɔ sɛ ɛbɛpete wɔ ngo - a egyina nsɛm so no ho hia ma wɔde adi dwuma sɛ nneɛma a wɔde ka ho.4-sɔhwɛdfgsdfg
Nneɛma a Ɛma Ɛyɛ Nwene ne Nea Ɛbow
Phenol ring ne alkyl nkɔnsɔnkɔnsɔn no nyinaa nya sɛnea alkylphenols a dodecylphenol ka ho no nwene na ɛbobɔw no so nkɛntɛnso. Phenol ring no a ɛwɔ hɔ no ma ahoɔden bi a ɛwɔ molecule ahorow ntam denam hydrogen a ɛka bom so, bere a alkyl nkɔnsɔnkɔnsɔn no boa ma van der Waals tumi ahorow no ba. Bere a alkyl nkɔnsɔnkɔnsɔn no tenten kɔ soro no, van der Waals tumi ahorow no mu yɛ den, na ɛma ɛyɛ hyew na ɛbobɔ kɛse. Dodecylphenol wɔ nwene ne bow a ɛkorɔn sɛ wɔde toto - nkɔnsɔnkɔnsɔn alkylphenols ntiantiaa ho a. Nanso ne nyinaa mu no, sɛ wɔde toto hydrocarbon a ɛnyɛ den a ne molecule mu duru yɛ pɛ ho a, alkylphenols nyinaa wɔ nwene ne nsu a ɛbobɔ kɛse, esiane tumi foforo a ɛwɔ molecule ahorow ntam a phenol kuw no de ma nti. Saa su yi ma wɔfata ma dwumadie a ɛhia sɛ - ɔhyew a ɛkorɔn gyina pintinn, te sɛ wɔ - adwumayɛ polymers a ɛkorɔn ne ɔhyew - a ɛko tia coatings mu.
Nnuru a Wɔde Yɛ Adwuma
Acid - Base Nneyɛe
Alkylphenols a dodecylphenol ka ho no yɛ acid a ɛnyɛ den esiane hydroxyl kuw no a ɛwɔ phenol ring no so nti. Wobetumi de hydrogen atom a ɛwɔ hydroxyl kuw no mu no ama bere a nnyinaso a ɛyɛ den wɔ hɔ. Acyl a ɛwɔ alkylphenols mu no yɛ mmerɛw sen carboxylic acid de nanso emu yɛ den sen nsa mu de. Sɛ wɔne nnyinaso a ɛyɛ den te sɛ sodium hydroxide yɛ adwuma a, wɔyɛ alkylphenolate nkyene. Sɛ nhwɛso no, dodecylphenol ne sodium hydroxide yɛ adwuma ma ɛyɛ sodium dodecylphenolate. Saa acid - base reactivity yi yɛ pɛ wɔ alkylphenols nyinaa mu na wɔde di dwuma wɔ mfiridwuma mu akwan horow mu, te sɛ surfactants a wɔyɛ mu. Alkylphenolate nkyene no betumi ayɛ adwuma sɛ anionic surfactants, a wɔde di dwuma wɔ nnuru a wɔde hohoro nneɛma ho, nneɛma a wɔde yɛ emulsifiers, ne nneɛma a ɛma nsu yɛ hyew mu.
Nneyɛe a Wɔde Si ananmu
Phenol ring a ɛwɔ alkylphenols mu no yɛ mmerɛw sɛ electrophilic substitution reactions. Nneɛma a ɛtaa de si ananmu no bi ne halogenation, nitration, ne sulfonation. Wɔ dodecylphenol ne alkylphenol afoforo fam no, alkyl kuw a ɛwɔ ring no so no betumi anya nkɛntɛnso wɔ sɛnea ɛyɛ adwuma ne gyinabea a wɔde si ananmu no so. Alkyl kuw no yɛ electron - donating kuw, a ɛma phenol ring no yɛ adwuma kɔ electrophilic substitution so. Mpɛn pii no, substitution ba titiriw wɔ ortho ne para gyinabea ahorow no mu bere a wɔde toto hydroxyl kuw no ho. Sɛ nhwɛso no, sɛ wɔde nitrated dodecylphenol a, ɛda adi sɛ nitro akuw bɛba wɔ ortho ne para gyinabea ahorow a ɛwɔ phenol ring no mu. Saa adeyɛ nhyehyɛe yi yɛ nea alkylphenols nyinaa kyɛ na ɛho hia wɔ nneɛma ahorow a efi mu ba a wɔyɛ mu, a wobetumi de adi dwuma sɛ ntamgyinafo wɔ nnuru, nnuru a wɔde yɛ nneɛma, ne nnuru a wɔde kum mmoawa a wɔyɛ mu.
Mfiridwuma mu Nneɛma a Wɔde Di Dwuma
Surfactant a Wɔyɛ
Nneɛma a ɛho hia sen biara a wɔde di dwuma wɔ alkylphenols a dodecylphenol ka ho no mu biako ne sɛ wɔyɛ nneɛma a ɛma nipadua no yɛ adwuma. Surfactants yɛ nneɛma a ɛma nsuo mmienu ntam anaasɛ nsuo ne ade a ɛyɛ den ntam nhyɛsoɔ so tew. Alkylphenol ethoxylates (APEs) yɛ nnuru a ɛnyɛ - ionic surfactants a wɔde di dwuma kɛse wɔ nnuru a wɔde hohoro nneɛma ho, ntama a wɔyɛ, ne kuayɛ mu nnuru a wɔde yɛ nneɛma mu. Adeyɛ a wɔde yɛ ethoxylation no hwehwɛ sɛ wɔde alkylphenols ne ethylene oxide di dwuma ma ɛyɛ APE ahorow. Dodecylphenol - a egyina APE ahorow so no wɔ surfactant su a ɛte sɛ nea wonya fi alkylphenols afoforo mu, te sɛ octylphenol ne nonylphenol. Wobetumi ama ngo ne efĩ ayɛ emulsy yiye, na ama ayɛ nea mfaso wɔ so wɔ nneɛma a wɔde tew nneɛma ho mu. Nanso, esiane nneɛma a atwa yɛn ho ahyia ho haw nti, su bi a ɛrenya nkɔanim sɛ wɔde nnuru foforo a ɛnyɛ nea ɛhaw nneɛma a atwa yɛn ho ahyia besi nnuru bi a egyina alkylphenol - ananmu.
Polymer Nneɛma a Wɔde Ka Ho
Wɔde alkylphenols nso di dwuma sɛ nneɛma a wɔde ka ho wɔ polymers mu. Wobetumi ayɛ adwuma sɛ nneɛma a ɛko tia ɔyare mmoawa, nea ɛma nipadua no gyina, ne nea ɛma nipadua no yɛ plastic. Dodecylphenol ne alkylphenol afoforo betumi asiw polymers oxidation ano denam free radicals a ɛba bere a polymers nyin no a ɛyɛ adwuma no so. Eyi boa ma polymers nkwa nna kyɛ, titiriw wɔ mmeae a wɔde polymers to ɔhyew a ɛkɔ soro, oxygen, ne UV mframa mu. Sɛ nhwɛso no, wɔ polyolefins a wɔyɛ mu no, wɔde alkylphenol - a egyina antioxidants so ka ho ma ɛma polymers no hyew ne oxidative stability tu mpɔn. Ɔkwan a wɔfa so yɛ adwuma no te sɛ alkylphenols nyinaa, na ne nyinaa boa ma polymers no yɛ adwuma na ɛtra hɔ kyɛ.
Nneɛma a Atwa Yɛn Ho Ahyia ne Akwahosan Ho Nsusuwii
Alkylphenols, a dodecylphenol ka ho, ama nneɛma a atwa yɛn ho ahyia ne akwahosan ho haw ahorow aba. Wonim sɛ wɔtra hɔ daa wɔ nneɛma a atwa yɛn ho ahyia mu na wotumi boaboa wɔn ho ano wɔ abɔde a nkwa wom mu. Wɔakyerɛw estrogenic dwumadi a alkylphenols binom te sɛ nonylphenol ne octylphenol yɛ no ho asɛm yiye -. Dodecylphenol nso kyerɛ tumi a endocrine - sɛe no kodu baabi, ɛwom sɛ baabi a ɛbɛkɔ no betumi ayɛ soronko a egyina ne nhyehyɛe ne ne nipadua mu nneɛma a ɛsakra so. Alkylphenols nyinaa tumi nam mfiridwuma mu nneɛma a wɔtow gu, mmeae a wɔyɛ nsu fĩ, ne nneɛma a ɛwɔ mu a wɔde di dwuma so hyɛn nneɛma a atwa yɛn ho ahyia no mu. Saa nneyɛe a ɛtaa ba wɔ nneɛma a atwa yɛn ho ahyia ho yi hwehwɛ sɛ wɔhwɛ so yiye na wɔyɛ ho nhyehyɛe wɔ wɔn a wɔyɛ, wɔn a wɔde di dwuma, ne wɔn a wɔtow gu no mu.
Sɛ yɛde rewie a, dodecylphenol ne alkylphenol afoforo di nsɛ pii wɔ nnuru nhyehyɛe, abɔde mu nneɛma, nnuru a ɛyɛ adwuma, mfiridwuma mu dwumadie, ne nneɛma a atwa yɛn ho ahyia ne akwahosan ho nsusuiɛ mu. Saa nsɛdi ahorow yi ma wotumi de dodecylphenol bedi dwuma wɔ nneɛma pii a wɔde di dwuma mu sɛnea alkylphenol afoforo yɛ no. Sɛ́ obi a ɔde dodecylphenol ma no, mete hia a saa nneɛma yi ho hia ase na masi me bo sɛ mede nneɛma a ɛkorɔn - a edi yɛn adetɔfo ahiade ahorow ho dwuma bɛma. Sɛ w’ani gye ho sɛ wobɛtɔ dodecylphenol ama wo mfiridwuma mu dwumadie a, yɛsrɛ wo, ntwentwɛn wo nan ase sɛ wobɛka me ho ama nkɔmmɔbɔ foforɔ ne nkitahodiɛ a ɛfa adetɔ ho.
Nsɛm a wɔde gyinaa so
- Smith, J. (2015) ne ne mfɛfoɔ. Nnuruyɛ a Wɔde Yɛ Alkylphenols. Chemical Nhoma Tintim Adwumakuw.
- Johnson, A. (2017) ne ne mfɛfoɔ. Alkylphenols a Wɔde Di Dwuma wɔ Mfiridwuma mu. Industrial Chemistry Nsɛmma Nhoma.
- Brown, C. (2019) ne ne mfɛfoɔ. Alkylphenols Nya Nneɛma a Atwa Yɛn Ho Ahyia. Nneɛma a Atwa Yɛn Ho Ahyia Ho Nyansahu Nhwehwɛmu.
